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Level 3 Repair
8-18
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8-3-6. SIM Card Working
Check U202
SIM Connector
Break down?
No
Change SIM500
Yes
No
Yes
C508
= 2.85V
NG
Check SIM500
& Neighboring Circuits
Insert & Operate
SIM card
Check SIM_RST
(C501)
SIM_CLK(C502)
Change main chip
No
Yes
Summary of Contents for GT-C3330
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