Samsung GT-C3300K - 8-3-8. SIM Card Working

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Level
3
Repair
8-22
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8-3-8.
SIM Card Working
Check UCP200
SIM Connector
Break down?
NO
Change SIM300
YES
No
Yes
C357
=3.0V
NG
Check SIM300
&
Neighboring Circuits
Insert
&
Operate
SIM card
Check SIM_RST
(
C355)
SIM_CLK(C356)
Change main chip
No
Yes