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Level 3 Repair
8-3-4. Sim Part
Phone can't access SIM Card
Yes
No
Check the SIMVCC = 3.0V
Check the circuit related to R308, C339
Yes
No
Check the SIM connector's
resolder or change SIM300
connect to SIM card
Yes
No
Check the circuit around SIM300
Check the related circuit of SIM300
input circuitry
Yes
Check the SIM Card
(look over if it get damaged.)
Yes
END
8-12
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