Samsung Galaxy Alpha G850F Randomly Reboots/Power Down. HELP?

[AC Question]

I bought used Samsung Alpha from the market. At first it was working fine but then it started to reboot again n again own its or some times power off. I've tried changing battery and also tried updating (Lollipop) and downgrading (Kitkat) my firmware but the problem wont solve. Need further help please.

 

[B. Diddy]

Welcome to Android Central! Do you have an SD card inserted? If so, try taking it out, in case the card is corrupt (which can cause various issues).

If it persists, it may be a hardware issue (which may also be why the phone was up for sale :-\ ).

 

[karmellino]

Hi, this is probably power ic issue, it should be reball or replecement as present in this video: https://www.youtube.com/watch?v=Uf-K_dvMPEA