Turn tablet on/off when powercable is plugged / unplugged

Evelen · May 19, 2014

Hi.

I have a Nexus 7 2012 in my car and running Timur's Kernel.
When i disconnect the power the tablet goes to Deep sleep.
The problem is that the battery don't lasts more than max 24h, and that's if it is 100% (also I don't drive enough to charge 100% every day).
So the result is a flat battery, and then I have to wait 15-20min for the battery to be fully enough that the Nexus can be turned on.

Therefore I want the following functionality:
- When the Nexus receive power the tablet will turn on and start "Car Home Ultra".
- When the Nexus loose power it will go to Deep Sleep, and if the power is not back in X minutes it will turn off.

Is this possible?

Evelen · May 19, 2014

bootloader?

ok, i found this: http://www.mp3car.com/android-table...n-nexus-7-without-using-the-power-button.html

EDIT: This worked perfectly. Unlock your bootloader and type "fastboot oem off-mode-charge 0". Now, even if the tablet is completely turned off, when you apply power it automatically boots to the home screen. No power button needed ever again.

But how do i write commands in bootloader? My devoice is rooted, but I don't know if the bootloader is unlocked.

khaytsus · May 20, 2014

Evelen said:
ok, i found this: http://www.mp3car.com/android-table...n-nexus-7-without-using-the-power-button.html

But how do i write commands in bootloader? My devoice is rooted, but I don't know if the bootloader is unlocked.

You do exactly what it says to do.. Boot into the bootloader and type the command given.

If you're rooted, your bootloader is most likely unlocked.

Evelen · May 20, 2014

khaytsus said:
You do exactly what it says to do.. Boot into the bootloader and type the command given.

If you're rooted, your bootloader is most likely unlocked.

O thanks, I must connect my Nexus to the computher t do this, right?

Evelen · May 20, 2014

worked perfect.
Now I need som tasker help: http://xdaforums.com/showthread.php?p=52799192

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Turn tablet on/off when powercable is plugged / unplugged

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