Level 3 Repair
8-3-4. Sim Part
Insert SIM card
Yes
No
Is SIM/SD socket ok?
Replace SIM/SD socket.
Yes
Change to the new SIM card.
Check the SIM Voltage.
No
If it doesn`t still work SIM card after changing
(C9171 or C9172 ) >= 1.8
or 3.0?
the SIM card, Check the U3002(Crack etc)
Yes
END
8-12
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