Sim Card Working - Samsung GT-S5570 Service Manual

Level 3 Repair

8-3-8. SIM Card Working

SIM is not working
& Neighboring Circuits
SIM is not working
Insert & Operate
SIM card
NG
SIM Connector
Break down?
YES
U608
= 3.0V
Yes
Resolder or Replace
SIM600
Check SIM600
Resolder or Replace
UCP300
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
NO
Change SIM600
No
Resolder
Change Main PBA
8-42
Yes
Check
U619
Change
U619 U615(PMIC)