S4 mini turn it self off

[jamjamcorr37]

I have I Samson S4 mini when I put a new battery in the phone it come on then it turns it self off I have try to Flash the phone and update the settings still not working can anyone help me

 

[B. Diddy]

Welcome to Android Central! Moved to the S4 mini forum.

Are you saying the phone is rooted, or did you just reinstall the stock firmware? Was the new battery fully charged before you tried it? If so, then there could be a problem with the Power button. I'd bring it to a repair shop to inspect.