Dct4 power on problem with battery but software connecting time localmode&testmode

1)CHANGE BATTERY

2)RESOLDRING BATTERY CONNECTOR

3)CLEAN OR CHANGE BOTTON CONNECTOR

4)CHECK BSI WAYS

5)CHANGE BSI RESISTER

IF PROBLEM NOT SOLVED?
REFLOW OR CHANGE UEM
UEM CHANCE 40%


SAME PROBLEM FACED DCT4 ANOTHER MODEL HANDSET
POST HANDSETS MODEL NUMBER OR HISTORY I WILL HELP U