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8. Level 3 Repair
8-4-4. SIM Part
Insert SIM card
Yes
No
Yes
No
END
Check the SIM Voltage.
= 1.8V or 3.0V
(C6016,C6036)?
No
Change to the new SIM card.
If it doesn`t still work SIM card after
changing
the SIM card, Check the U5000 (Crack
etc)
Is SIM socket ok?
Yes
No
No
Replace SIM socket
Check the SIM RST / IO / CLK.
(SIM1 : ZD6024, ZD6025, ZD6026)
(SIM2 : ZD6004, ZD6007, ZD6008)
Is signal ok?
No
Yes
No
Check the UCP400 (Crack etc)
