Battery suddenly drops when every update done

[WPCentral Question]

Hi guys. i have a problem here with batrey since i upgrade to wp 8.1....

the problem was began when i change region setting to try cortana... first it restart, its fine... but in the second time restart (after i change to the previous regions) the batrey drops to 42% (before 100%) and keep like that if i updated my phone. anyone have an idea with this? i'm afraid that this is a hardware damage

thanks all... sorry for bad english

 

[roni09riku]

It's probably just software issue. You can try soft resetting your phone. Are you on Cyan or still WP8.1 DP?