china low battry sutdowen solution

software and hardware.

i solve some of this phone by format/flash (so must try it first)

and next try hardware by this-
R104 (4x2=8pin, some pcb have 1more so change all)
change power ic
re-hot/change cpu.

plz do step by step
for lowbatteryshutdown, you try both

   

 xksstel low battery shutdown

Try Its Solution nice working