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8. Level 3 Repair
8-4-23. GSM DCS/PCS, WCDMA B1/2/4, LTE B1/2/3/4/66 PRx
END
Check ant path any damage
(ANT9002 ~ ANT9000)
Is it ok? (SUB PBA)
Check RX path any damage
(RFS1000~U1003)
Is it ok?
Check U1003, U7066
any damage
(Crack, open, etc), is it ok?
Change the board
Resolder or change
Antenna path components
Resolder or change
RX path components
Resolder or change
U1003, U7066
NO
NO
NO
YES
YES
YES
YES
YES
It is not catching the channel
In normal condition
