Samsung GT-S5830 - SIM Card Working

SAMSUNG Proprietary-Contents may change without notice
Level
3
Repair
8-27
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8-3-8.
SIM Card Working
Resolder
Q600
Change
U400(PMIC)
Yes
Check
Q600
SIM Connector
Break down?
NO
Change SIM600
YES
No
Yes
R607
=3.0V
NG
Resolder or Replace SIM600
&
Neighboring Circuits
Insert
&
Operate
SIM card
Check data,,clk,reset line
Yes
Resolder or Replace
UCP300
No
Change PBA