k750i battery problem

i think you should clean and change the charging connector

try to update your phone white seus
or use main & fs r1ca021
i do not have this problem with r1ca021

in some cases maste reset (reset all ) is useful

Hello

when the battery doesn't work in another Se-Phone, then is the battery the problem.
When the battery works, is it a problem with the phone. :)

Corsscheck ur battry with a new phone and new phone's battery in ur phone. u will get the exact problem.

check the battery it may be totally dead, dead battery do not respond. try with new battery.