[ndbhavsar97]

My phone gets switched off on its own!
My Battery goes From 90% to 10% in no time!
I don't realise it unless I plug in the charger!
This Has happened the second time in a day!
Has someone any idea of what's happening?

Posted via CB10

[rawkerboi 07]

Tried new battery?

Posted via CB10

[FF22]

Open Device Monitor and check both the Battery readings and then by pressing the Left Bottom Menu, the CPU readings. This should show what is running.

But sometimes you only need to reboot if something is "stuck!"

Try a restart:

Press and HOLD both Vol Up/Down buttons. Keep holding while the screen goes fully black (ignore the screenshot), keep holding through the Black/White logo and when the Colored Logo shows up, release those buttons.

If you have the STL100-1 variant the volume button reset method doesn't work. In that case, Press and HOLD the Power On Button until you see the LOGO as above

[baranikola]

This might sound stupid, but it worked for me. I had similar problems (drove me mad) unitl I cleaned the contacts both on the battery and in the phone with a q tip dipped in a 96% ethanol my IT dpt uses to clean stuff with. Worked fine ever since. In the era of electronics, software bugs and such it is easy to forget about good ol' electromechanics.