Auto boot when wall charger is plugged [closed]

Question

I'm Developing an Android Application where it requireds 3 things:-

1. To keep the App up an running for specific time and then phone will be off (Working Fine)
2. When phone get charging from outlet, I want phone to power up automatically without hitting any power button. (Not Working with wall Socket, but working when connected to USB cable via Laptop).
3. After boot my app should start working Automatically (Working Fine)

You Must know :- My phone is Moto E (rooted) and want 2nd step to be done. Tried some codes but that does not work on moto E. When Connected with USB it gives 2 as response and when connected with Wall socket charger it says 1

Any help will be Appreciated

P.S :- Auto Boot working with USB cable connected with Laptop but not with Socket Charger

Update-1: 1- Found fastboot oem off-mode-charge 0 working with Nexus 7 but not on Moto e.

2- Moto e boots when connected to Router (USB Dongle Port)

Mize

its because if you plug it into your laptop it uses it as an Data cable , but wall socket doesn't send any data , only voltage – Sebastian

can you provide some of your java code? – Sebastian

@Mize can you post the code that is currently working with the USB cable? – Larrisa

For USB, it works by default in Motorola E – Mize

At last found the solution ! Peace! Relief! – Mize

@Rohit: Can you post the solution that is 100% working for you. I also have the same requirement on a rooted device. – Needleful

@Needleful which device you have? – Mize

@Rohit: Rooted Moto-E device. – Needleful

Now things are changed no longer .lpm type file is present however the following may work. forum.xda-developers.com/galaxy-note-3/help/… – Austerity

Answer 1

At last I got the solution, you can achieve this by deleting system/bin/charge_only_mode file. Please do that at your own risk and before deleting have backup of that file. I got the desired result that was boot when its connected to wall charger and now its working fine. All the best!

Mize

I tried editing that file by pulling it from device onto my machine by opening in a file editor. It seems to be a binary file and I am not sure how to edit. Could you please give me directions on where to edit and what to edit! – Needleful

I just deleted that file after taking backup of that. No editing nothing else . Used ES file explorer and then in Menu>Tools>Root Explorer (Turned That ON) and then copied that file somewhere and then deleted that file. – Mize

@Rohit: Do you know the command using which we can turn off the backlight during the booting up stage (the stage where the battery anim is showed)? – Concentric

Lenovo S6000-H doesn't have "system/bin/charge_only_mode" or "/system/bin/chargemon" or "/system/bin/playlpm"!!! Take a look at this android.stackexchange.com/questions/131062/…. How can I do this on S6000? : – Alkoran

This file is not present on a Motorola Moto E (condor) :( – Requite

Answer 2

Moto e4 and Pixel 2 XL:

Get your device into the bootloader (fastboot) and run the following command from a computer connected over USB with Android Tools:

fastboot oem off-mode-charge 0

Maxfield

Worked on a nexus 4 with lineage os. Thanks – Rectangular

Answer 3

I was able to get it to work by updating the init.rc file

I found the on charger trigger and added the following lines below it:

setprop ro.bootmode "normal"
setprop sys.powerctl "reboot"

The entire trigger block ends up looking like this

on charger
    class_start charger
    setprop ro.bootmode "normal"
    setprop sys.powerctl "reboot"

You then need to repack and flash the boot image created after the updates.

Connect the device over USB

Power on device and get to bootloader mode

adb reboot bootloader 

To flash boot image execute the following command while in fastboot

fastboot flash boot new-boot.img

Note: This fix will cause the device to reboot when its plugged in even when shutting it off using the power button or software shutdown.

Source: https://forum.xda-developers.com/showthread.php?p=77766638#post77766638

You can see the commit that contains these changes for my project here:

https://github.com/darran-kelinske-fivestars/mkbootimg_tools/commit/c8633a2ec2e1924272fd16a8ed7fa7414bb65544#diff-d0007d763b44198f7c22e2c19609d5bbR606

Corking

Answer 4

I also tried replacing charge_only_mode with a sh script that rebooted the phone but only got a red circle with the M (on a Motorola Bionic). Changing the script to the below got it working...Now I get the red circle with the M for a few seconds, then a blank screen, the another red circle with the M, and it boots on up.

#!/system/bin/sh
su -c "/system/bin/reboot -n outofcharge"

Pterosaur

Answer 5

On my device Lenovo K7000-Plus, the file need to be modified is kpoc_charger located at /system/bin.

Ipod file not working on my phone which using Android 6.0 ROM, but kpoc_charger works pefectly.

Regards

Hadi

Grille

Answer 6

For Lenovo A2010 phone,following worked:

1. Use file manager phone app from playstore like Total commander(on rooted phone) to goto folder /system/bin/
2. Copy file kpoc_charger and paste it there as kpoc_charger.bak

3. Now edit the original file kpoc_charger using total-commander, replace all lines with following code:

   #!/system/bin/sh
   /system/bin/reboot
   

4. Save it, goto properties and change UID:0 root, GID:2000 shell and permission as 755 (same as properties of other files in /system/bin folder).
5. Now shutdown phone and plug to charger.
6. Bazinga!!!! battery icon shows for a sec but phone sucessfully boots into os.

Carranza

Answer 7

When phone get charging from outlet, I want phone to power up automatically without hitting any power button. (Not Working with wall Socket, but working when connected to USB cable via Laptop).

You can only achieve this by modifying your phone's OS files. Basically there is boot script/binary at /system/bin/chargemon which you can replace with a script that does nothing. Do it at your own risk because this may result in the device being damaged permanently. Also, Manufacturer warranty will become void.

Daffi

nothing like chargemon is present. i have charge_monitor and this file is encoded – Mize

Answer 8

I found another way for this (thanks to DavidThompson256 http://forum.xda-developers.com/showthread.php?t=1187631)

First make sure your phone is rooted (which I found iRoot very good for this), then install RootExplorer.apk (or similar) on your phone.

Try to edit "/system/bin/playlpm" and replace its content with following commands: (do not forget to make a backup first).

#!/system/bin/sh
/system/bin/reboot

(I know the content is in binary, simply remove them and write those two lines and save the file)

NOTE: When you modify that file, no changes will be applied on its permissions but if you are making another file remember to set permissions exactly as it was.

Finally, please do it on your own risk. It worked for me. (Samsung Discovery S730M)

Apocynthion

Answer 9

i think there should be power sensor if you can add that in this code i belive it will work

public class Main extends Activity {
        private SensorManager mSensorManager;
        private PowerManager mPowerManager;
        private WindowManager mWindowManager;
        private WakeLock mWakeLock;
        private Button button;
        private TextView textView;

        /** Called when the activity is first created. */
        @Override
        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
try{
            // Get an instance of the SensorManager
            mSensorManager = (SensorManager) getSystemService(SENSOR_SERVICE);

            // Get an instance of the PowerManager
            mPowerManager = (PowerManager) getSystemService(POWER_SERVICE);

            // Get an instance of the WindowManager
            mWindowManager = (WindowManager) getSystemService(WINDOW_SERVICE);
            mWindowManager.getDefaultDisplay();

            // Create a bright wake lock
            mWakeLock = mPowerManager.newWakeLock(PowerManager.SCREEN_BRIGHT_WAKE_LOCK, getClass()
                    .getName());

            setContentView(R.layout.main);
            textView = (TextView)findViewById(R.id.textView1);
            button = (Button)findViewById(R.id.button1);
            button.setOnClickListener(mButtonStopListener);


        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            Log.e("onCreate", e.getMessage());
        }
} // END onCreate

        View.OnClickListener mButtonStopListener = new OnClickListener() {
            public void onClick(View v) {
                try {
                    mWakeLock.release();
                    textView.setText("mWakeLock.release()");
                } catch (Exception e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                    Log.e("onPause",e.getMessage());
                }

            }
        };

        @Override
        protected void onResume() {
            super.onResume();
            /*
             * when the activity is resumed, we acquire a wake-lock so that the
             * screen stays on, since the user will likely not be fiddling with the
             * screen or buttons.
             */

            try {
                mWakeLock.acquire();
                textView.setText("mWakeLock.acquire()");
            } catch (Exception e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
                Log.e("onResume", e.getMessage());
            }

        }

        @Override
        protected void onPause() {
            super.onPause();

            // and release our wake-lock
            try {
                mWakeLock.release();
            } catch (Exception e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
                Log.e("onPause",e.getMessage());
            }
        }
}

Sebastian

How will this work when the OP states that he intends to boot up the device when its powered up using the USB cable? In short,when the device is off,no app is running and hence your code won't even execute. This kind of functionality is embedded in the bootloader before the Android OS boots up.IMO,we need to modify the kernel level files to achieve the result. – Concentric

at last i found the solution and its 100 % working now. – Mize

@Rohit: Can you post the solution that is 100% working for you. I also have the same requirement on a rooted device. – Needleful

Yes, please let us know your solution @Rohit. I am rooted and I was able to remove the "charge_only_mode" file, but now when I plug into a wall charger I just get the red circle with Moto "M", and I have to pull the battery to reset. Thank you. – Duky

I have mentioned the solution . Please check at the top and am using same thing with my 20 Moto E devices . – Mize

Answer 10

So I was trying to achieve this with a 3rd gen Moto G. It has a charge_only_mode file as per Rohit's answer, but simply moving/renaming it did not make the phone reboot on charge. Instead it just sat there with a Motorola logo. I got the same result when replacing charge_only_mode with either of the scripts referenced here.

I did get it to work, however. I copied /system/bin/reboot into /system/bin/charge_only_mode, and that did the trick.

Classieclassification