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8. Level 3 Repair
8-4-24. GSM 850/900, WCDMA B5/8, LTE B5/8/20 DRx
END
Check ant path any damage
(ANT2002~U2001)
Is it ok?
)
Check RX path any damage
(U2001~U2012)
Is it ok?
Check U2012~U2016
any damage
(Crack, open, etc), is it ok?
i
Change the board
Resolder or change
Antenna path components
Resolder or change
RX path components
Resolder or change
RX path components
NO
NO
NO
YES
YES
YES
YES
YES
It is not catching the channel
In normal condition