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8. Level 3 Repair
8-4-4. SIM PART
Check if the SIM card has
damaged
Check the voltage of
C3014=1.8V or 3.0V
R3003=1.8V or 3.0V
Check if the pin in the
U3008 has damaged
END
Change the SIM Card
Yes
SIM Card does not work
Replace U4043 and U7001
Replace the U3008 or PBA
Yes
No
No
Yes