Use a cotton ear buds with rubber band force on the power button constantly.
If you have full charge before deadboot, it take 3-5 day to total drain out the battery.
After drain out u press power button the low battery sign show.
Let it charging will turn on automatic.


Hope it helps. Remember do not update Fw and restart device.

This post has been edited by DjKenji: Sep 19 2021, 01:06 AM