Factory reset without interacting #12

New Issue

2024-08-31T02:12:29+02:00

Benjamin_Loison commented

2024-08-31 02:12:29 +02:00

The Android Stack Exchange answer 175888:

adb recovery -h

adb: unknown command recovery

adb recovery

adb: unknown command recovery

adb shell recovery

/system/bin/sh: recovery: inaccessible or not found

adb shell recovery -h

/system/bin/sh: recovery: inaccessible or not found

adb shell

first does not help.

Would help the issue:

[The Android Stack Exchange answer 175888](https://android.stackexchange.com/a/175888): ```bash adb recovery -h ``` ``` adb: unknown command recovery ``` ```bash adb recovery ``` ``` adb: unknown command recovery ``` ```bash adb shell recovery ``` ``` /system/bin/sh: recovery: inaccessible or not found ``` ```bash adb shell recovery -h ``` ``` /system/bin/sh: recovery: inaccessible or not found ``` ```bash adb shell ``` first does not help. <details> <summary>Would help the issue:</summary> ``` -----BEGIN PGP MESSAGE----- hF4DTQa9Wom5MBgSAQdACgRLNXbRhlyrSkHx/q0LRui4PzRl3fjW82/OjVMYXwcw DU3SzkuL7oBa+jIqHZApjE8miX442URqrlojl40TLmBj6Q8do70oV7AESGWvUM8T 0nsBFsivcDs7Hut8B6mZH7g6FUFjz9tgm18k/GbPRXfMAit87rUpOVgWZtZk07jg c8vQkFK4cnUUrXAklO19GapLy2JEyR1/Tsx7wmAvJa4yXCHD0L98kFVZfcbqruct acJWRODltNfDpmydbzyf5ed0p41piDAwEJjWcjM= =E6XX -----END PGP MESSAGE----- ``` </details>

Benjamin_Loison commented

2024-09-04 22:56:55 +02:00

Related to Benjamin-Loison/waydroid/issues/49.

adb reboot recovery

works fine after Benjamin-Loison/android/issues/73.

Related to [Benjamin-Loison/waydroid/issues/49](https://github.com/Benjamin-Loison/waydroid/issues/49). ```bash adb reboot recovery ``` works fine after [Benjamin-Loison/android/issues/73](https://github.com/Benjamin-Loison/android/issues/73).

Benjamin_Loison commented

2024-09-05 01:03:33 +02:00

Maybe LineageOS recovery can receive an argument to automatically factory reset.

Benjamin_Loison commented

2024-09-05 19:59:50 +02:00

adb reboot recovery --wipe_data

just redirects to recovery. Reboot system now reboots to usual phone state.

```bash adb reboot recovery --wipe_data ``` just redirects to recovery. *Reboot system now* reboots to usual phone state.

Benjamin_Loison commented

2024-09-05 20:00:19 +02:00

When running as normal:

fastboot devices

does not return anything.

Not that contrarily to when having a cable, here the purpose it to be used wireless, hence we will lose connection to actually factory reset if we reboot to fastboot.

When running as normal: ```bash fastboot devices ``` does not return anything. Not that contrarily to when having a cable, here the purpose it to be used wireless, hence we will lose connection to actually factory reset if we reboot to fastboot.

Benjamin_Loison commented

2024-09-05 20:04:55 +02:00

Note that preferably do not require root.

adb unroot

adbd not running as root

Source: https://adbshell.com/commands/adb-root

works fine:

adb shell whoami

shell

Note that preferably do not require `root`. ```bash adb unroot ``` ``` adbd not running as root ``` Source: https://adbshell.com/commands/adb-root works fine: ```bash adb shell whoami ``` ``` shell ```

Benjamin_Loison commented

2024-09-05 20:06:34 +02:00

adb shell am broadcast -a android.intent.action.MASTER_CLEAR

Output:

Broadcasting: Intent { act=android.intent.action.MASTER_CLEAR flg=0x400000 }
Broadcast completed: result=0

Source: the Stack Overflow answer 35446558

does not do anything, same with root.

adb shell "su -c 'am broadcast -a android.intent.action.MASTER_CLEAR'"

/system/bin/sh: su: inaccessible or not found

with adb shell whoami returning shell, same as root.

am broadcast -p 'android' --receiver-foreground -a android.intent.action.FACTORY_RESET

am: command not found

adb shell am broadcast -p 'android' --receiver-foreground -a android.intent.action.FACTORY_RESET

Output:

Broadcasting: Intent { act=android.intent.action.FACTORY_RESET flg=0x10400000 pkg=android }
Broadcast completed: result=0

does not do anything.

However, as root a prompt showing factory reset with a few seconds loading then restart.

It works fine on Pixel 8 LineageOS 22.1 (Android 15) too.

It boots correctly on LineageOS installation.

The question is: is it possible to factory reset without root?

Can we simplify this root working command?

adb shell am -h

Output:

...
  broadcast [--user <USER_ID> | all | current]
          [--receiver-permission <PERMISSION>]
          [--allow-background-activity-starts]
          [--async] <INTENT>
      Send a broadcast Intent.  Options are:
      --user <USER_ID> | all | current: Specify which user to send to; if not
          specified then send to all users. 
      --receiver-permission <PERMISSION>: Require receiver to hold permission.
      --allow-background-activity-starts: The receiver may start activities
          even if in the background.
      --async: Send without waiting for the completion of the receiver.
...

Full output:

Activity manager (activity) commands:
  help
      Print this help text.
  start-activity [-D] [-N] [-W] [-P <FILE>] [--start-profiler <FILE>]
          [--sampling INTERVAL] [--clock-type <TYPE>] [--streaming]
          [-R COUNT] [-S] [--track-allocation]
          [--user <USER_ID> | current] [--suspend] <INTENT>
      Start an Activity.  Options are:
      -D: enable debugging
      --suspend: debugged app suspend threads at startup (only with -D)
      -N: enable native debugging
      -W: wait for launch to complete (initial display)
      --start-profiler <FILE>: start profiler and send results to <FILE>
      --sampling INTERVAL: use sample profiling with INTERVAL microseconds
          between samples (use with --start-profiler)
      --clock-type <TYPE>: type can be wall / thread-cpu / dual. Specify
          the clock that is used to report the timestamps when profiling
          The default value is dual. (use with --start-profiler)
      --streaming: stream the profiling output to the specified file
          (use with --start-profiler)
      -P <FILE>: like above, but profiling stops when app goes idle
      --attach-agent <agent>: attach the given agent before binding
      --attach-agent-bind <agent>: attach the given agent during binding
      -R: repeat the activity launch <COUNT> times.  Prior to each repeat,
          the top activity will be finished.
      -S: force stop the target app before starting the activity
      --track-allocation: enable tracking of object allocations
      --user <USER_ID> | current: Specify which user to run as; if not
          specified then run as the current user.
      --windowingMode <WINDOWING_MODE>: The windowing mode to launch the activity into.
      --activityType <ACTIVITY_TYPE>: The activity type to launch the activity as.
      --display <DISPLAY_ID>: The display to launch the activity into.
      --splashscreen-icon: Show the splash screen icon on launch.
  start-service [--user <USER_ID> | current] <INTENT>
      Start a Service.  Options are:
      --user <USER_ID> | current: Specify which user to run as; if not
          specified then run as the current user.
  start-foreground-service [--user <USER_ID> | current] <INTENT>
      Start a foreground Service.  Options are:
      --user <USER_ID> | current: Specify which user to run as; if not
          specified then run as the current user.
  stop-service [--user <USER_ID> | current] <INTENT>
      Stop a Service.  Options are:
      --user <USER_ID> | current: Specify which user to run as; if not
          specified then run as the current user.
  broadcast [--user <USER_ID> | all | current]
          [--receiver-permission <PERMISSION>]
          [--allow-background-activity-starts]
          [--async] <INTENT>
      Send a broadcast Intent.  Options are:
      --user <USER_ID> | all | current: Specify which user to send to; if not
          specified then send to all users.
      --receiver-permission <PERMISSION>: Require receiver to hold permission.
      --allow-background-activity-starts: The receiver may start activities
          even if in the background.
      --async: Send without waiting for the completion of the receiver.
  compact [some|full] <process_name> [--user <USER_ID>]
      Perform a single process compaction.
      some: execute file compaction.
      full: execute anon + file compaction.
      system: system compaction.
  compact system
      Perform a full system compaction.
  compact native [some|full] <pid>
      Perform a native compaction for process with <pid>.
      some: execute file compaction.
      full: execute anon + file compaction.
  freeze [--sticky] <processname> [--user <USER_ID>]
      Freeze a process.
        --sticky: persists the frozen state for the process lifetime or
                  until an unfreeze is triggered via shell
  unfreeze [--sticky] <processname> [--user <USER_ID>]
      Unfreeze a process.
        --sticky: persists the unfrozen state for the process lifetime or
                  until a freeze is triggered via shell
  instrument [-r] [-e <NAME> <VALUE>] [-p <FILE>] [-w]
          [--user <USER_ID> | current]
          [--no-hidden-api-checks [--no-test-api-access]]
          [--no-isolated-storage]
          [--no-window-animation] [--abi <ABI>] <COMPONENT>
      Start an Instrumentation.  Typically this target <COMPONENT> is in the
      form <TEST_PACKAGE>/<RUNNER_CLASS> or only <TEST_PACKAGE> if there
      is only one instrumentation.  Options are:
      -r: print raw results (otherwise decode REPORT_KEY_STREAMRESULT).  Use with
          [-e perf true] to generate raw output for performance measurements.
      -e <NAME> <VALUE>: set argument <NAME> to <VALUE>.  For test runners a
          common form is [-e <testrunner_flag> <value>[,<value>...]].
      -p <FILE>: write profiling data to <FILE>
      -m: Write output as protobuf to stdout (machine readable)
      -f <Optional PATH/TO/FILE>: Write output as protobuf to a file (machine
          readable). If path is not specified, default directory and file name will
          be used: /sdcard/instrument-logs/log-yyyyMMdd-hhmmss-SSS.instrumentation_data_proto
      -w: wait for instrumentation to finish before returning.  Required for
          test runners.
      --user <USER_ID> | current: Specify user instrumentation runs in;
          current user if not specified.
      --no-hidden-api-checks: disable restrictions on use of hidden API.
      --no-test-api-access: do not allow access to test APIs, if hidden
          API checks are enabled.
      --no-isolated-storage: don't use isolated storage sandbox and 
          mount full external storage
      --no-window-animation: turn off window animations while running.
      --abi <ABI>: Launch the instrumented process with the selected ABI.
          This assumes that the process supports the selected ABI.
  trace-ipc [start|stop] [--dump-file <FILE>]
      Trace IPC transactions.
      start: start tracing IPC transactions.
      stop: stop tracing IPC transactions and dump the results to file.
      --dump-file <FILE>: Specify the file the trace should be dumped to.
  profile start [--user <USER_ID> current]
          [--clock-type <TYPE>]
          [--sampling INTERVAL | --streaming] <PROCESS> <FILE>
      Start profiler on a process.  The given <PROCESS> argument
        may be either a process name or pid.  Options are:
      --user <USER_ID> | current: When supplying a process name,
          specify user of process to profile; uses current user if not
          specified.
      --clock-type <TYPE>: use the specified clock to report timestamps.
          The type can be one of wall | thread-cpu | dual. The default
          value is dual.
      --sampling INTERVAL: use sample profiling with INTERVAL microseconds
          between samples.
      --streaming: stream the profiling output to the specified file.
  profile stop [--user <USER_ID> current] <PROCESS>
      Stop profiler on a process.  The given <PROCESS> argument
        may be either a process name or pid.  Options are:
      --user <USER_ID> | current: When supplying a process name,
          specify user of process to profile; uses current user if not
          specified.
  dumpheap [--user <USER_ID> current] [-n] [-g] <PROCESS> <FILE>
      Dump the heap of a process.  The given <PROCESS> argument may
        be either a process name or pid.  Options are:
      -n: dump native heap instead of managed heap
      -g: force GC before dumping the heap
      --user <USER_ID> | current: When supplying a process name,
          specify user of process to dump; uses current user if not specified.
  set-debug-app [-w] [--persistent] <PACKAGE>
      Set application <PACKAGE> to debug.  Options are:
      -w: wait for debugger when application starts
      --persistent: retain this value
  clear-debug-app
      Clear the previously set-debug-app.
  set-watch-heap <PROCESS> <MEM-LIMIT>
      Start monitoring pss size of <PROCESS>, if it is at or
      above <HEAP-LIMIT> then a heap dump is collected for the user to report.
  clear-watch-heap
      Clear the previously set-watch-heap.
  clear-start-info [--user <USER_ID> | all | current] [package]
      Clear the process start-info for given package
  clear-exit-info [--user <USER_ID> | all | current] [package]
      Clear the process exit-info for given package
  bug-report [--progress | --telephony]
      Request bug report generation; will launch a notification
        when done to select where it should be delivered. Options are:
     --progress: will launch a notification right away to show its progress.
     --telephony: will dump only telephony sections.
  fgs-notification-rate-limit {enable | disable}
     Enable/disable rate limit on FGS notification deferral policy.
  force-stop [--user <USER_ID> | all | current] <PACKAGE>
      Completely stop the given application package.
  stop-app [--user <USER_ID> | all | current] <PACKAGE>
      Stop an app and all of its services.  Unlike `force-stop` this does
      not cancel the app's scheduled alarms and jobs.
  crash [--user <USER_ID>] <PACKAGE|PID>
      Induce a VM crash in the specified package or process
  kill [--user <USER_ID> | all | current] <PACKAGE>
      Kill all background processes associated with the given application.
  kill-all
      Kill all processes that are safe to kill (cached, etc).
  make-uid-idle [--user <USER_ID> | all | current] <PACKAGE>
      If the given application's uid is in the background and waiting to
      become idle (not allowing background services), do that now.
  set-deterministic-uid-idle [--user <USER_ID> | all | current] <true|false>
      If true, sets the timing of making UIDs idle consistent and
      deterministic. If false, the timing will be variable depending on
      other activity on the device. The default is false.
  monitor [--gdb <port>] [-p <TARGET>] [-s] [-c] [-k]
      Start monitoring for crashes or ANRs.
      --gdb: start gdbserv on the given port at crash/ANR
      -p: only show events related to a specific process / package
      -s: simple mode, only show a summary line for each event
      -c: assume the input is always [c]ontinue
      -k: assume the input is always [k]ill
         -c and -k are mutually exclusive.
  watch-uids [--oom <uid>] [--mask <capabilities integer>]
      Start watching for and reporting uid state changes.
      --oom: specify a uid for which to report detailed change messages.
      --mask: Specify PROCESS_CAPABILITY_XXX mask to report. 
              By default, it only reports FOREGROUND_LOCATION (1)
              FOREGROUND_CAMERA (2), FOREGROUND_MICROPHONE (4)
              and NETWORK (8). New capabilities added on or after
              Android UDC will not be reported by default.
  hang [--allow-restart]
      Hang the system.
      --allow-restart: allow watchdog to perform normal system restart
  restart
      Restart the user-space system.
  idle-maintenance
      Perform idle maintenance now.
  screen-compat [on|off] <PACKAGE>
      Control screen compatibility mode of <PACKAGE>.
  package-importance <PACKAGE>
      Print current importance of <PACKAGE>.
  to-uri [INTENT]
      Print the given Intent specification as a URI.
  to-intent-uri [INTENT]
      Print the given Intent specification as an intent: URI.
  to-app-uri [INTENT]
      Print the given Intent specification as an android-app: URI.
  switch-user <USER_ID>
      Switch to put USER_ID in the foreground, starting
      execution of that user if it is currently stopped.
  get-current-user
      Returns id of the current foreground user.
  start-user [-w] [--display DISPLAY_ID] <USER_ID>
      Start USER_ID in background if it is currently stopped;
      use switch-user if you want to start the user in foreground.
      -w: wait for start-user to complete and the user to be unlocked.
      --display <DISPLAY_ID>: starts the user visible in that display, which allows the user to launch activities on it.
        (not supported on all devices; typically only on automotive builds where the vehicle has passenger displays)
  unlock-user <USER_ID>
      Unlock the given user.  This will only work if the user doesn't
      have an LSKF (PIN/pattern/password).
  stop-user [-w] [-f] <USER_ID>
      Stop execution of USER_ID, not allowing it to run any
      code until a later explicit start or switch to it.
      -w: wait for stop-user to complete.
      -f: force stop even if there are related users that cannot be stopped.
  is-user-stopped <USER_ID>
      Returns whether <USER_ID> has been stopped or not.
  get-started-user-state <USER_ID>
      Gets the current state of the given started user.
  track-associations
      Enable association tracking.
  untrack-associations
      Disable and clear association tracking.
  get-uid-state <UID>
      Gets the process state of an app given its <UID>.
  attach-agent <PROCESS> <FILE>
    Attach an agent to the specified <PROCESS>, which may be either a process name or a PID.
  get-config [--days N] [--device] [--proto] [--display <DISPLAY_ID>]
      Retrieve the configuration and any recent configurations of the device.
      --days: also return last N days of configurations that have been seen.
      --device: also output global device configuration info.
      --proto: return result as a proto; does not include --days info.
      --display: Specify for which display to run the command; if not 
          specified then run for the default display.
  supports-multiwindow
      Returns true if the device supports multiwindow.
  supports-split-screen-multi-window
      Returns true if the device supports split screen multiwindow.
  suppress-resize-config-changes <true|false>
      Suppresses configuration changes due to user resizing an activity/task.
  set-inactive [--user <USER_ID>] <PACKAGE> true|false
      Sets the inactive state of an app.
  get-inactive [--user <USER_ID>] <PACKAGE>
      Returns the inactive state of an app.
  set-standby-bucket [--user <USER_ID>] <PACKAGE> active|working_set|frequent|rare|restricted
      Puts an app in the standby bucket.
  get-standby-bucket [--user <USER_ID>] <PACKAGE>
      Returns the standby bucket of an app.
  send-trim-memory [--user <USER_ID>] <PROCESS>
          [HIDDEN|RUNNING_MODERATE|BACKGROUND|RUNNING_LOW|MODERATE|RUNNING_CRITICAL|COMPLETE]
      Send a memory trim event to a <PROCESS>.  May also supply a raw trim int level.
  display [COMMAND] [...]: sub-commands for operating on displays.
       move-stack <STACK_ID> <DISPLAY_ID>
           Move <STACK_ID> from its current display to <DISPLAY_ID>.
  stack [COMMAND] [...]: sub-commands for operating on activity stacks.
       move-task <TASK_ID> <STACK_ID> [true|false]
           Move <TASK_ID> from its current stack to the top (true) or
           bottom (false) of <STACK_ID>.
       list
           List all of the activity stacks and their sizes.
       info <WINDOWING_MODE> <ACTIVITY_TYPE>
           Display the information about activity stack in <WINDOWING_MODE> and <ACTIVITY_TYPE>.
       remove <STACK_ID>
           Remove stack <STACK_ID>.
  task [COMMAND] [...]: sub-commands for operating on activity tasks.
       lock <TASK_ID>
           Bring <TASK_ID> to the front and don't allow other tasks to run.
       lock stop
           End the current task lock.
       resizeable <TASK_ID> [0|1|2|3]
           Change resizeable mode of <TASK_ID> to one of the following:
           0: unresizeable
           1: crop_windows
           2: resizeable
           3: resizeable_and_pipable
       resize <TASK_ID> <LEFT,TOP,RIGHT,BOTTOM>
           Makes sure <TASK_ID> is in a stack with the specified bounds.
           Forces the task to be resizeable and creates a stack if no existing stack
           has the specified bounds.
  update-appinfo <USER_ID> <PACKAGE_NAME> [<PACKAGE_NAME>...]
      Update the ApplicationInfo objects of the listed packages for <USER_ID>
      without restarting any processes.
  write
      Write all pending state to storage.
  compat [COMMAND] [...]: sub-commands for toggling app-compat changes.
         enable|disable [--no-kill] <CHANGE_ID|CHANGE_NAME> <PACKAGE_NAME>
            Toggles a change either by id or by name for <PACKAGE_NAME>.
            It kills <PACKAGE_NAME> (to allow the toggle to take effect) unless --no-kill is provided.
         reset <CHANGE_ID|CHANGE_NAME> <PACKAGE_NAME>
            Toggles a change either by id or by name for <PACKAGE_NAME>.
            It kills <PACKAGE_NAME> (to allow the toggle to take effect).
         enable-all|disable-all <targetSdkVersion> <PACKAGE_NAME>
            Toggles all changes that are gated by <targetSdkVersion>.
         reset-all [--no-kill] <PACKAGE_NAME>
            Removes all existing overrides for all changes for 
            <PACKAGE_NAME> (back to default behaviour).
            It kills <PACKAGE_NAME> (to allow the toggle to take effect) unless --no-kill is provided.
  memory-factor [command] [...]: sub-commands for overriding memory pressure factor
         set <NORMAL|MODERATE|LOW|CRITICAL>
            Overrides memory pressure factor. May also supply a raw int level
         show
            Shows the existing memory pressure factor
         reset
            Removes existing override for memory pressure factor
  service-restart-backoff <COMMAND> [...]: sub-commands to toggle service restart backoff policy.
         enable|disable <PACKAGE_NAME>
            Toggles the restart backoff policy on/off for <PACKAGE_NAME>.
         show <PACKAGE_NAME>
            Shows the restart backoff policy state for <PACKAGE_NAME>.
  get-isolated-pids <UID>
         Get the PIDs of isolated processes with packages in this <UID>
  set-stop-user-on-switch [true|false]
         Sets whether the current user (and its profiles) should be stopped when switching to a different user.
         Without arguments, it resets to the value defined by platform.
  set-bg-abusive-uids [uid=percentage][,uid=percentage...]
         Force setting the battery usage of the given UID.
  set-bg-restriction-level [--user <USER_ID>] <PACKAGE> unrestricted|exempted|adaptive_bucket|restricted_bucket|background_restricted|hibernation
         Set an app's background restriction level which in turn map to a app standby bucket.
  get-bg-restriction-level [--user <USER_ID>] <PACKAGE>
         Get an app's background restriction level.
  list-displays-for-starting-users
         Lists the id of displays that can be used to start users on background.
  set-foreground-service-delegate [--user <USER_ID>] <PACKAGE> start|stop
         Start/stop an app's foreground service delegate.
  set-ignore-delivery-group-policy <ACTION>
         Start ignoring delivery group policy set for a broadcast action
  clear-ignore-delivery-group-policy <ACTION>
         Stop ignoring delivery group policy set for a broadcast action
  capabilities [--protobuf]
         Output am supported features (text format). Options are:
         --protobuf: format output using protobuffer
<INTENT> specifications include these flags and arguments:
    [-a <ACTION>] [-d <DATA_URI>] [-t <MIME_TYPE>] [-i <IDENTIFIER>]
    [-c <CATEGORY> [-c <CATEGORY>] ...]
    [-n <COMPONENT_NAME>]
    [-e|--es <EXTRA_KEY> <EXTRA_STRING_VALUE> ...]
    [--esn <EXTRA_KEY> ...]
    [--ez <EXTRA_KEY> <EXTRA_BOOLEAN_VALUE> ...]
    [--ei <EXTRA_KEY> <EXTRA_INT_VALUE> ...]
    [--el <EXTRA_KEY> <EXTRA_LONG_VALUE> ...]
    [--ef <EXTRA_KEY> <EXTRA_FLOAT_VALUE> ...]
    [--ed <EXTRA_KEY> <EXTRA_DOUBLE_VALUE> ...]
    [--eu <EXTRA_KEY> <EXTRA_URI_VALUE> ...]
    [--ecn <EXTRA_KEY> <EXTRA_COMPONENT_NAME_VALUE>]
    [--eia <EXTRA_KEY> <EXTRA_INT_VALUE>[,<EXTRA_INT_VALUE...]]
        (multiple extras passed as Integer[])
    [--eial <EXTRA_KEY> <EXTRA_INT_VALUE>[,<EXTRA_INT_VALUE...]]
        (multiple extras passed as List<Integer>)
    [--ela <EXTRA_KEY> <EXTRA_LONG_VALUE>[,<EXTRA_LONG_VALUE...]]
        (multiple extras passed as Long[])
    [--elal <EXTRA_KEY> <EXTRA_LONG_VALUE>[,<EXTRA_LONG_VALUE...]]
        (multiple extras passed as List<Long>)
    [--efa <EXTRA_KEY> <EXTRA_FLOAT_VALUE>[,<EXTRA_FLOAT_VALUE...]]
        (multiple extras passed as Float[])
    [--efal <EXTRA_KEY> <EXTRA_FLOAT_VALUE>[,<EXTRA_FLOAT_VALUE...]]
        (multiple extras passed as List<Float>)
    [--eda <EXTRA_KEY> <EXTRA_DOUBLE_VALUE>[,<EXTRA_DOUBLE_VALUE...]]
        (multiple extras passed as Double[])
    [--edal <EXTRA_KEY> <EXTRA_DOUBLE_VALUE>[,<EXTRA_DOUBLE_VALUE...]]
        (multiple extras passed as List<Double>)
    [--esa <EXTRA_KEY> <EXTRA_STRING_VALUE>[,<EXTRA_STRING_VALUE...]]
        (multiple extras passed as String[]; to embed a comma into a string,
         escape it using "\,")
    [--esal <EXTRA_KEY> <EXTRA_STRING_VALUE>[,<EXTRA_STRING_VALUE...]]
        (multiple extras passed as List<String>; to embed a comma into a string,
         escape it using "\,")
    [-f <FLAG>]
    [--grant-read-uri-permission] [--grant-write-uri-permission]
    [--grant-persistable-uri-permission] [--grant-prefix-uri-permission]
    [--debug-log-resolution] [--exclude-stopped-packages]
    [--include-stopped-packages]
    [--activity-brought-to-front] [--activity-clear-top]
    [--activity-clear-when-task-reset] [--activity-exclude-from-recents]
    [--activity-launched-from-history] [--activity-multiple-task]
    [--activity-no-animation] [--activity-no-history]
    [--activity-no-user-action] [--activity-previous-is-top]
    [--activity-reorder-to-front] [--activity-reset-task-if-needed]
    [--activity-single-top] [--activity-clear-task]
    [--activity-task-on-home] [--activity-match-external]
    [--receiver-registered-only] [--receiver-replace-pending]
    [--receiver-foreground] [--receiver-no-abort]
    [--receiver-include-background]
    [--selector]
    [<URI> | <PACKAGE> | <COMPONENT>]

adb shell am broadcast --help

Output:

Exception occurred while executing 'broadcast':
java.lang.IllegalArgumentException: Unknown option: --help
	at android.content.Intent.parseCommandArgs(Intent.java:8874)
	at com.android.server.am.ActivityManagerShellCommand.makeIntent(ActivityManagerShellCommand.java:483)
	at com.android.server.am.ActivityManagerShellCommand.runSendBroadcast(ActivityManagerShellCommand.java:931)
	at com.android.server.am.ActivityManagerShellCommand.onCommand(ActivityManagerShellCommand.java:250)
	at com.android.modules.utils.BasicShellCommandHandler.exec(BasicShellCommandHandler.java:97)
	at android.os.ShellCommand.exec(ShellCommand.java:38)
	at com.android.server.am.ActivityManagerService.onShellCommand(ActivityManagerService.java:10144)
	at android.os.Binder.shellCommand(Binder.java:1230)
	at android.os.Binder.onTransact(Binder.java:1043)
	at android.app.IActivityManager$Stub.onTransact(IActivityManager.java:5443)
	at com.android.server.am.ActivityManagerService.onTransact(ActivityManagerService.java:2822)
	at android.os.Binder.execTransactInternal(Binder.java:1505)
	at android.os.Binder.execTransact(Binder.java:1444)

Same with -h.

```bash adb shell am broadcast -a android.intent.action.MASTER_CLEAR ``` <details> <summary>Output:</summary> ``` Broadcasting: Intent { act=android.intent.action.MASTER_CLEAR flg=0x400000 } Broadcast completed: result=0 ``` </details> Source: [the Stack Overflow answer 35446558](https://stackoverflow.com/a/35446558) does not do anything, same with `root`. ```bash adb shell "su -c 'am broadcast -a android.intent.action.MASTER_CLEAR'" ``` ``` /system/bin/sh: su: inaccessible or not found ``` with `adb shell whoami` returning `shell`, same as `root`. ```bash am broadcast -p 'android' --receiver-foreground -a android.intent.action.FACTORY_RESET ``` ``` am: command not found ``` ```bash adb shell am broadcast -p 'android' --receiver-foreground -a android.intent.action.FACTORY_RESET ``` <details> <summary>Output:</summary> ``` Broadcasting: Intent { act=android.intent.action.FACTORY_RESET flg=0x10400000 pkg=android } Broadcast completed: result=0 ``` </details> does not do anything. However, as `root` a prompt showing factory reset with a few seconds loading then restart. ![image](/attachments/80221627-b35a-4222-b894-010c07aebd9e) It works fine on Pixel 8 LineageOS 22.1 (Android 15) too. It boots correctly on LineageOS installation. The question is: is it possible to factory reset without `root`? Can we simplify this `root` working command? ```bash adb shell am -h ``` <details> <summary>Output:</summary> ``` ... broadcast [--user <USER_ID> | all | current] [--receiver-permission <PERMISSION>] [--allow-background-activity-starts] [--async] <INTENT> Send a broadcast Intent. Options are: --user <USER_ID> | all | current: Specify which user to send to; if not specified then send to all users. --receiver-permission <PERMISSION>: Require receiver to hold permission. --allow-background-activity-starts: The receiver may start activities even if in the background. --async: Send without waiting for the completion of the receiver. ... ``` </details> <details> <summary>Full output:</summary> ``` Activity manager (activity) commands: help Print this help text. start-activity [-D] [-N] [-W] [-P <FILE>] [--start-profiler <FILE>] [--sampling INTERVAL] [--clock-type <TYPE>] [--streaming] [-R COUNT] [-S] [--track-allocation] [--user <USER_ID> | current] [--suspend] <INTENT> Start an Activity. Options are: -D: enable debugging --suspend: debugged app suspend threads at startup (only with -D) -N: enable native debugging -W: wait for launch to complete (initial display) --start-profiler <FILE>: start profiler and send results to <FILE> --sampling INTERVAL: use sample profiling with INTERVAL microseconds between samples (use with --start-profiler) --clock-type <TYPE>: type can be wall / thread-cpu / dual. Specify the clock that is used to report the timestamps when profiling The default value is dual. (use with --start-profiler) --streaming: stream the profiling output to the specified file (use with --start-profiler) -P <FILE>: like above, but profiling stops when app goes idle --attach-agent <agent>: attach the given agent before binding --attach-agent-bind <agent>: attach the given agent during binding -R: repeat the activity launch <COUNT> times. Prior to each repeat, the top activity will be finished. -S: force stop the target app before starting the activity --track-allocation: enable tracking of object allocations --user <USER_ID> | current: Specify which user to run as; if not specified then run as the current user. --windowingMode <WINDOWING_MODE>: The windowing mode to launch the activity into. --activityType <ACTIVITY_TYPE>: The activity type to launch the activity as. --display <DISPLAY_ID>: The display to launch the activity into. --splashscreen-icon: Show the splash screen icon on launch. start-service [--user <USER_ID> | current] <INTENT> Start a Service. Options are: --user <USER_ID> | current: Specify which user to run as; if not specified then run as the current user. start-foreground-service [--user <USER_ID> | current] <INTENT> Start a foreground Service. Options are: --user <USER_ID> | current: Specify which user to run as; if not specified then run as the current user. stop-service [--user <USER_ID> | current] <INTENT> Stop a Service. Options are: --user <USER_ID> | current: Specify which user to run as; if not specified then run as the current user. broadcast [--user <USER_ID> | all | current] [--receiver-permission <PERMISSION>] [--allow-background-activity-starts] [--async] <INTENT> Send a broadcast Intent. Options are: --user <USER_ID> | all | current: Specify which user to send to; if not specified then send to all users. --receiver-permission <PERMISSION>: Require receiver to hold permission. --allow-background-activity-starts: The receiver may start activities even if in the background. --async: Send without waiting for the completion of the receiver. compact [some|full] <process_name> [--user <USER_ID>] Perform a single process compaction. some: execute file compaction. full: execute anon + file compaction. system: system compaction. compact system Perform a full system compaction. compact native [some|full] <pid> Perform a native compaction for process with <pid>. some: execute file compaction. full: execute anon + file compaction. freeze [--sticky] <processname> [--user <USER_ID>] Freeze a process. --sticky: persists the frozen state for the process lifetime or until an unfreeze is triggered via shell unfreeze [--sticky] <processname> [--user <USER_ID>] Unfreeze a process. --sticky: persists the unfrozen state for the process lifetime or until a freeze is triggered via shell instrument [-r] [-e <NAME> <VALUE>] [-p <FILE>] [-w] [--user <USER_ID> | current] [--no-hidden-api-checks [--no-test-api-access]] [--no-isolated-storage] [--no-window-animation] [--abi <ABI>] <COMPONENT> Start an Instrumentation. Typically this target <COMPONENT> is in the form <TEST_PACKAGE>/<RUNNER_CLASS> or only <TEST_PACKAGE> if there is only one instrumentation. Options are: -r: print raw results (otherwise decode REPORT_KEY_STREAMRESULT). Use with [-e perf true] to generate raw output for performance measurements. -e <NAME> <VALUE>: set argument <NAME> to <VALUE>. For test runners a common form is [-e <testrunner_flag> <value>[,<value>...]]. -p <FILE>: write profiling data to <FILE> -m: Write output as protobuf to stdout (machine readable) -f <Optional PATH/TO/FILE>: Write output as protobuf to a file (machine readable). If path is not specified, default directory and file name will be used: /sdcard/instrument-logs/log-yyyyMMdd-hhmmss-SSS.instrumentation_data_proto -w: wait for instrumentation to finish before returning. Required for test runners. --user <USER_ID> | current: Specify user instrumentation runs in; current user if not specified. --no-hidden-api-checks: disable restrictions on use of hidden API. --no-test-api-access: do not allow access to test APIs, if hidden API checks are enabled. --no-isolated-storage: don't use isolated storage sandbox and mount full external storage --no-window-animation: turn off window animations while running. --abi <ABI>: Launch the instrumented process with the selected ABI. This assumes that the process supports the selected ABI. trace-ipc [start|stop] [--dump-file <FILE>] Trace IPC transactions. start: start tracing IPC transactions. stop: stop tracing IPC transactions and dump the results to file. --dump-file <FILE>: Specify the file the trace should be dumped to. profile start [--user <USER_ID> current] [--clock-type <TYPE>] [--sampling INTERVAL | --streaming] <PROCESS> <FILE> Start profiler on a process. The given <PROCESS> argument may be either a process name or pid. Options are: --user <USER_ID> | current: When supplying a process name, specify user of process to profile; uses current user if not specified. --clock-type <TYPE>: use the specified clock to report timestamps. The type can be one of wall | thread-cpu | dual. The default value is dual. --sampling INTERVAL: use sample profiling with INTERVAL microseconds between samples. --streaming: stream the profiling output to the specified file. profile stop [--user <USER_ID> current] <PROCESS> Stop profiler on a process. The given <PROCESS> argument may be either a process name or pid. Options are: --user <USER_ID> | current: When supplying a process name, specify user of process to profile; uses current user if not specified. dumpheap [--user <USER_ID> current] [-n] [-g] <PROCESS> <FILE> Dump the heap of a process. The given <PROCESS> argument may be either a process name or pid. Options are: -n: dump native heap instead of managed heap -g: force GC before dumping the heap --user <USER_ID> | current: When supplying a process name, specify user of process to dump; uses current user if not specified. set-debug-app [-w] [--persistent] <PACKAGE> Set application <PACKAGE> to debug. Options are: -w: wait for debugger when application starts --persistent: retain this value clear-debug-app Clear the previously set-debug-app. set-watch-heap <PROCESS> <MEM-LIMIT> Start monitoring pss size of <PROCESS>, if it is at or above <HEAP-LIMIT> then a heap dump is collected for the user to report. clear-watch-heap Clear the previously set-watch-heap. clear-start-info [--user <USER_ID> | all | current] [package] Clear the process start-info for given package clear-exit-info [--user <USER_ID> | all | current] [package] Clear the process exit-info for given package bug-report [--progress | --telephony] Request bug report generation; will launch a notification when done to select where it should be delivered. Options are: --progress: will launch a notification right away to show its progress. --telephony: will dump only telephony sections. fgs-notification-rate-limit {enable | disable} Enable/disable rate limit on FGS notification deferral policy. force-stop [--user <USER_ID> | all | current] <PACKAGE> Completely stop the given application package. stop-app [--user <USER_ID> | all | current] <PACKAGE> Stop an app and all of its services. Unlike `force-stop` this does not cancel the app's scheduled alarms and jobs. crash [--user <USER_ID>] <PACKAGE|PID> Induce a VM crash in the specified package or process kill [--user <USER_ID> | all | current] <PACKAGE> Kill all background processes associated with the given application. kill-all Kill all processes that are safe to kill (cached, etc). make-uid-idle [--user <USER_ID> | all | current] <PACKAGE> If the given application's uid is in the background and waiting to become idle (not allowing background services), do that now. set-deterministic-uid-idle [--user <USER_ID> | all | current] <true|false> If true, sets the timing of making UIDs idle consistent and deterministic. If false, the timing will be variable depending on other activity on the device. The default is false. monitor [--gdb <port>] [-p <TARGET>] [-s] [-c] [-k] Start monitoring for crashes or ANRs. --gdb: start gdbserv on the given port at crash/ANR -p: only show events related to a specific process / package -s: simple mode, only show a summary line for each event -c: assume the input is always [c]ontinue -k: assume the input is always [k]ill -c and -k are mutually exclusive. watch-uids [--oom <uid>] [--mask <capabilities integer>] Start watching for and reporting uid state changes. --oom: specify a uid for which to report detailed change messages. --mask: Specify PROCESS_CAPABILITY_XXX mask to report. By default, it only reports FOREGROUND_LOCATION (1) FOREGROUND_CAMERA (2), FOREGROUND_MICROPHONE (4) and NETWORK (8). New capabilities added on or after Android UDC will not be reported by default. hang [--allow-restart] Hang the system. --allow-restart: allow watchdog to perform normal system restart restart Restart the user-space system. idle-maintenance Perform idle maintenance now. screen-compat [on|off] <PACKAGE> Control screen compatibility mode of <PACKAGE>. package-importance <PACKAGE> Print current importance of <PACKAGE>. to-uri [INTENT] Print the given Intent specification as a URI. to-intent-uri [INTENT] Print the given Intent specification as an intent: URI. to-app-uri [INTENT] Print the given Intent specification as an android-app: URI. switch-user <USER_ID> Switch to put USER_ID in the foreground, starting execution of that user if it is currently stopped. get-current-user Returns id of the current foreground user. start-user [-w] [--display DISPLAY_ID] <USER_ID> Start USER_ID in background if it is currently stopped; use switch-user if you want to start the user in foreground. -w: wait for start-user to complete and the user to be unlocked. --display <DISPLAY_ID>: starts the user visible in that display, which allows the user to launch activities on it. (not supported on all devices; typically only on automotive builds where the vehicle has passenger displays) unlock-user <USER_ID> Unlock the given user. This will only work if the user doesn't have an LSKF (PIN/pattern/password). stop-user [-w] [-f] <USER_ID> Stop execution of USER_ID, not allowing it to run any code until a later explicit start or switch to it. -w: wait for stop-user to complete. -f: force stop even if there are related users that cannot be stopped. is-user-stopped <USER_ID> Returns whether <USER_ID> has been stopped or not. get-started-user-state <USER_ID> Gets the current state of the given started user. track-associations Enable association tracking. untrack-associations Disable and clear association tracking. get-uid-state <UID> Gets the process state of an app given its <UID>. attach-agent <PROCESS> <FILE> Attach an agent to the specified <PROCESS>, which may be either a process name or a PID. get-config [--days N] [--device] [--proto] [--display <DISPLAY_ID>] Retrieve the configuration and any recent configurations of the device. --days: also return last N days of configurations that have been seen. --device: also output global device configuration info. --proto: return result as a proto; does not include --days info. --display: Specify for which display to run the command; if not specified then run for the default display. supports-multiwindow Returns true if the device supports multiwindow. supports-split-screen-multi-window Returns true if the device supports split screen multiwindow. suppress-resize-config-changes <true|false> Suppresses configuration changes due to user resizing an activity/task. set-inactive [--user <USER_ID>] <PACKAGE> true|false Sets the inactive state of an app. get-inactive [--user <USER_ID>] <PACKAGE> Returns the inactive state of an app. set-standby-bucket [--user <USER_ID>] <PACKAGE> active|working_set|frequent|rare|restricted Puts an app in the standby bucket. get-standby-bucket [--user <USER_ID>] <PACKAGE> Returns the standby bucket of an app. send-trim-memory [--user <USER_ID>] <PROCESS> [HIDDEN|RUNNING_MODERATE|BACKGROUND|RUNNING_LOW|MODERATE|RUNNING_CRITICAL|COMPLETE] Send a memory trim event to a <PROCESS>. May also supply a raw trim int level. display [COMMAND] [...]: sub-commands for operating on displays. move-stack <STACK_ID> <DISPLAY_ID> Move <STACK_ID> from its current display to <DISPLAY_ID>. stack [COMMAND] [...]: sub-commands for operating on activity stacks. move-task <TASK_ID> <STACK_ID> [true|false] Move <TASK_ID> from its current stack to the top (true) or bottom (false) of <STACK_ID>. list List all of the activity stacks and their sizes. info <WINDOWING_MODE> <ACTIVITY_TYPE> Display the information about activity stack in <WINDOWING_MODE> and <ACTIVITY_TYPE>. remove <STACK_ID> Remove stack <STACK_ID>. task [COMMAND] [...]: sub-commands for operating on activity tasks. lock <TASK_ID> Bring <TASK_ID> to the front and don't allow other tasks to run. lock stop End the current task lock. resizeable <TASK_ID> [0|1|2|3] Change resizeable mode of <TASK_ID> to one of the following: 0: unresizeable 1: crop_windows 2: resizeable 3: resizeable_and_pipable resize <TASK_ID> <LEFT,TOP,RIGHT,BOTTOM> Makes sure <TASK_ID> is in a stack with the specified bounds. Forces the task to be resizeable and creates a stack if no existing stack has the specified bounds. update-appinfo <USER_ID> <PACKAGE_NAME> [<PACKAGE_NAME>...] Update the ApplicationInfo objects of the listed packages for <USER_ID> without restarting any processes. write Write all pending state to storage. compat [COMMAND] [...]: sub-commands for toggling app-compat changes. enable|disable [--no-kill] <CHANGE_ID|CHANGE_NAME> <PACKAGE_NAME> Toggles a change either by id or by name for <PACKAGE_NAME>. It kills <PACKAGE_NAME> (to allow the toggle to take effect) unless --no-kill is provided. reset <CHANGE_ID|CHANGE_NAME> <PACKAGE_NAME> Toggles a change either by id or by name for <PACKAGE_NAME>. It kills <PACKAGE_NAME> (to allow the toggle to take effect). enable-all|disable-all <targetSdkVersion> <PACKAGE_NAME> Toggles all changes that are gated by <targetSdkVersion>. reset-all [--no-kill] <PACKAGE_NAME> Removes all existing overrides for all changes for <PACKAGE_NAME> (back to default behaviour). It kills <PACKAGE_NAME> (to allow the toggle to take effect) unless --no-kill is provided. memory-factor [command] [...]: sub-commands for overriding memory pressure factor set <NORMAL|MODERATE|LOW|CRITICAL> Overrides memory pressure factor. May also supply a raw int level show Shows the existing memory pressure factor reset Removes existing override for memory pressure factor service-restart-backoff <COMMAND> [...]: sub-commands to toggle service restart backoff policy. enable|disable <PACKAGE_NAME> Toggles the restart backoff policy on/off for <PACKAGE_NAME>. show <PACKAGE_NAME> Shows the restart backoff policy state for <PACKAGE_NAME>. get-isolated-pids <UID> Get the PIDs of isolated processes with packages in this <UID> set-stop-user-on-switch [true|false] Sets whether the current user (and its profiles) should be stopped when switching to a different user. Without arguments, it resets to the value defined by platform. set-bg-abusive-uids [uid=percentage][,uid=percentage...] Force setting the battery usage of the given UID. set-bg-restriction-level [--user <USER_ID>] <PACKAGE> unrestricted|exempted|adaptive_bucket|restricted_bucket|background_restricted|hibernation Set an app's background restriction level which in turn map to a app standby bucket. get-bg-restriction-level [--user <USER_ID>] <PACKAGE> Get an app's background restriction level. list-displays-for-starting-users Lists the id of displays that can be used to start users on background. set-foreground-service-delegate [--user <USER_ID>] <PACKAGE> start|stop Start/stop an app's foreground service delegate. set-ignore-delivery-group-policy <ACTION> Start ignoring delivery group policy set for a broadcast action clear-ignore-delivery-group-policy <ACTION> Stop ignoring delivery group policy set for a broadcast action capabilities [--protobuf] Output am supported features (text format). Options are: --protobuf: format output using protobuffer <INTENT> specifications include these flags and arguments: [-a <ACTION>] [-d <DATA_URI>] [-t <MIME_TYPE>] [-i <IDENTIFIER>] [-c <CATEGORY> [-c <CATEGORY>] ...] [-n <COMPONENT_NAME>] [-e|--es <EXTRA_KEY> <EXTRA_STRING_VALUE> ...] [--esn <EXTRA_KEY> ...] [--ez <EXTRA_KEY> <EXTRA_BOOLEAN_VALUE> ...] [--ei <EXTRA_KEY> <EXTRA_INT_VALUE> ...] [--el <EXTRA_KEY> <EXTRA_LONG_VALUE> ...] [--ef <EXTRA_KEY> <EXTRA_FLOAT_VALUE> ...] [--ed <EXTRA_KEY> <EXTRA_DOUBLE_VALUE> ...] [--eu <EXTRA_KEY> <EXTRA_URI_VALUE> ...] [--ecn <EXTRA_KEY> <EXTRA_COMPONENT_NAME_VALUE>] [--eia <EXTRA_KEY> <EXTRA_INT_VALUE>[,<EXTRA_INT_VALUE...]] (multiple extras passed as Integer[]) [--eial <EXTRA_KEY> <EXTRA_INT_VALUE>[,<EXTRA_INT_VALUE...]] (multiple extras passed as List<Integer>) [--ela <EXTRA_KEY> <EXTRA_LONG_VALUE>[,<EXTRA_LONG_VALUE...]] (multiple extras passed as Long[]) [--elal <EXTRA_KEY> <EXTRA_LONG_VALUE>[,<EXTRA_LONG_VALUE...]] (multiple extras passed as List<Long>) [--efa <EXTRA_KEY> <EXTRA_FLOAT_VALUE>[,<EXTRA_FLOAT_VALUE...]] (multiple extras passed as Float[]) [--efal <EXTRA_KEY> <EXTRA_FLOAT_VALUE>[,<EXTRA_FLOAT_VALUE...]] (multiple extras passed as List<Float>) [--eda <EXTRA_KEY> <EXTRA_DOUBLE_VALUE>[,<EXTRA_DOUBLE_VALUE...]] (multiple extras passed as Double[]) [--edal <EXTRA_KEY> <EXTRA_DOUBLE_VALUE>[,<EXTRA_DOUBLE_VALUE...]] (multiple extras passed as List<Double>) [--esa <EXTRA_KEY> <EXTRA_STRING_VALUE>[,<EXTRA_STRING_VALUE...]] (multiple extras passed as String[]; to embed a comma into a string, escape it using "\,") [--esal <EXTRA_KEY> <EXTRA_STRING_VALUE>[,<EXTRA_STRING_VALUE...]] (multiple extras passed as List<String>; to embed a comma into a string, escape it using "\,") [-f <FLAG>] [--grant-read-uri-permission] [--grant-write-uri-permission] [--grant-persistable-uri-permission] [--grant-prefix-uri-permission] [--debug-log-resolution] [--exclude-stopped-packages] [--include-stopped-packages] [--activity-brought-to-front] [--activity-clear-top] [--activity-clear-when-task-reset] [--activity-exclude-from-recents] [--activity-launched-from-history] [--activity-multiple-task] [--activity-no-animation] [--activity-no-history] [--activity-no-user-action] [--activity-previous-is-top] [--activity-reorder-to-front] [--activity-reset-task-if-needed] [--activity-single-top] [--activity-clear-task] [--activity-task-on-home] [--activity-match-external] [--receiver-registered-only] [--receiver-replace-pending] [--receiver-foreground] [--receiver-no-abort] [--receiver-include-background] [--selector] [<URI> | <PACKAGE> | <COMPONENT>] ``` </details> ```bash adb shell am broadcast --help ``` <details> <summary>Output:</summary> ``` Exception occurred while executing 'broadcast': java.lang.IllegalArgumentException: Unknown option: --help at android.content.Intent.parseCommandArgs(Intent.java:8874) at com.android.server.am.ActivityManagerShellCommand.makeIntent(ActivityManagerShellCommand.java:483) at com.android.server.am.ActivityManagerShellCommand.runSendBroadcast(ActivityManagerShellCommand.java:931) at com.android.server.am.ActivityManagerShellCommand.onCommand(ActivityManagerShellCommand.java:250) at com.android.modules.utils.BasicShellCommandHandler.exec(BasicShellCommandHandler.java:97) at android.os.ShellCommand.exec(ShellCommand.java:38) at com.android.server.am.ActivityManagerService.onShellCommand(ActivityManagerService.java:10144) at android.os.Binder.shellCommand(Binder.java:1230) at android.os.Binder.onTransact(Binder.java:1043) at android.app.IActivityManager$Stub.onTransact(IActivityManager.java:5443) at com.android.server.am.ActivityManagerService.onTransact(ActivityManagerService.java:2822) at android.os.Binder.execTransactInternal(Binder.java:1505) at android.os.Binder.execTransact(Binder.java:1444) ``` </details> Same with `-h`.

image.png

251 KiB

Benjamin_Loison commented

2024-09-05 20:15:37 +02:00

At least be able to shutdown the phone with adb can avoid physically dumping plaintext memory.

adb shell reboot -p

Done

Source: the Android Stack Exchange answer 47994

works fine on my Fairphone 4 LineageOS.

At least be able to shutdown the phone with adb can avoid physically dumping plaintext memory. ```bash adb shell reboot -p ``` ``` Done ``` Source: [the Android Stack Exchange answer 47994](https://android.stackexchange.com/a/47994) works fine on my Fairphone 4 LineageOS.

Benjamin_Loison commented

2024-09-05 20:19:50 +02:00

adb shell wipe data

/system/bin/sh: wipe: inaccessible or not found

Source: the Stack Overflow comment 32226315

```bash adb shell wipe data ``` ``` /system/bin/sh: wipe: inaccessible or not found ``` Source: [the Stack Overflow comment 32226315](https://stackoverflow.com/questions/14685721/how-can-i-do-factory-reset-using-adb-in-android#comment32226315_14685786)

Benjamin_Loison commented

2024-09-05 20:22:27 +02:00

Investigating DuckDuckGo and Google results for adb factory reset without root:

Investigating DuckDuckGo and Google results for *adb factory reset without root*:

Benjamin_Loison commented

2024-09-05 20:29:24 +02:00

adb shell am broadcast -p android -a android.intent.action.FACTORY_RESET

Output:

Broadcasting: Intent { act=android.intent.action.FACTORY_RESET flg=0x400000 pkg=android }
Broadcast completed: result=0

and

adb shell am broadcast -p android -a android.intent.action.FACTORY_RESET -e "android.intent.extra.REASON" "MasterClearConfirm" --ez "android.intent.extra.WIPE_EXTERNAL_STORAGE" true --ez "com.android.internal.intent.extra.WIPE_ESIMS" true --receiver-foreground

Output:

Broadcasting: Intent { act=android.intent.action.FACTORY_RESET flg=0x10400000 pkg=android (has extras) }
Broadcast completed: result=0

Source: https://xdaforums.com/t/adb-command-to-factory-reset-device.4315169/post-86668111

do not work too.

```bash adb shell am broadcast -p android -a android.intent.action.FACTORY_RESET ``` <details> <summary>Output:</summary> ``` Broadcasting: Intent { act=android.intent.action.FACTORY_RESET flg=0x400000 pkg=android } Broadcast completed: result=0 ``` </details> and ```bash adb shell am broadcast -p android -a android.intent.action.FACTORY_RESET -e "android.intent.extra.REASON" "MasterClearConfirm" --ez "android.intent.extra.WIPE_EXTERNAL_STORAGE" true --ez "com.android.internal.intent.extra.WIPE_ESIMS" true --receiver-foreground ``` <details> <summary>Output:</summary> ``` Broadcasting: Intent { act=android.intent.action.FACTORY_RESET flg=0x10400000 pkg=android (has extras) } Broadcast completed: result=0 ``` </details> Source: https://xdaforums.com/t/adb-command-to-factory-reset-device.4315169/post-86668111 do not work too.

Benjamin_Loison commented

2024-09-05 20:33:10 +02:00

adb shell am broadcast -a android.intent.action.MASTER_CLEAR -n android/com.android.server.MasterClearReceiver

Output:

Broadcasting: Intent { act=android.intent.action.MASTER_CLEAR flg=0x400000 cmp=android/com.android.server.MasterClearReceiver }
Broadcast completed: result=0

Source: https://xdaforums.com/t/help-enable-or-do-a-factory-reset-using-adb.4675265/post-89546631

adb shell am broadcast -a android.intent.action.FACTORY_RESET -n android/com.android.server.MasterClearReceiver

Output:

Broadcasting: Intent { act=android.intent.action.FACTORY_RESET flg=0x400000 cmp=android/com.android.server.MasterClearReceiver }
Broadcast completed: result=0

does not work too.

Maybe can investigate with adb logcat if some clues are given to make it work without root, as investigated in https://blog.deanwild.co.uk/android-factory-reset-via-adb-intent.

```bash adb shell am broadcast -a android.intent.action.MASTER_CLEAR -n android/com.android.server.MasterClearReceiver ``` <details> <summary>Output:</summary> ``` Broadcasting: Intent { act=android.intent.action.MASTER_CLEAR flg=0x400000 cmp=android/com.android.server.MasterClearReceiver } Broadcast completed: result=0 ``` </details> Source: https://xdaforums.com/t/help-enable-or-do-a-factory-reset-using-adb.4675265/post-89546631 ```bash adb shell am broadcast -a android.intent.action.FACTORY_RESET -n android/com.android.server.MasterClearReceiver ``` <details> <summary>Output:</summary> ``` Broadcasting: Intent { act=android.intent.action.FACTORY_RESET flg=0x400000 cmp=android/com.android.server.MasterClearReceiver } Broadcast completed: result=0 ``` </details> does not work too. Maybe can investigate with `adb logcat` if some clues are given to make it work without `root`, as investigated in https://blog.deanwild.co.uk/android-factory-reset-via-adb-intent.

Benjamin_Loison commented

2025-05-08 23:49:41 +02:00