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8. Level 3 Repair
8-4-23. NFC
Yes
No
END
Yes
No
Yes
No
Resolder or Replace 4002
Resolder or Replace SOC24001
Check AP Sub PMIC(U7004)
(short, open, crack, etc.)
Check AP Main PMIC(U7001)
(short, open, crack, etc.)
Yes
No
Yes
No
No
No
Check the NFC signal
at SOC24001
(Keystring *#6328378# ->
PRBS test -> start)
Check the voltage on
C4006 = 1.8V
Check reference clock at
C4022
Check the Antenna connect
SOC24001
NFC is not working
Yes
No
No
Enable NFC Function
Yes
No
No
Replace NFC Antenna
No
Check NFC function ON
Check the NFC FPCB Antenna
Check L4002, L4003, C4016, C4017,
C4002, 4003, C4024, R4005, R4006,
C4011, C4012, C4007
(crack, open, damaged, etc.)