Lte B7/38/40/41 Drx Troubleshooting - Samsung SM-M307F Service Manual

8. Level 3 Repair
8-4-25. LTE B7/38/40/41 DRx
It is not catching the channel
In normal condition
Check ant path any damage
(ANT2002~U2001)
Check RX path any damage
(U2001~U2012)
Check U2012~U2016
(Crack, open, etc), is it ok?
Change the board
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YES
Is it ok?
)
YES
Is it ok?
YES
any damage
i
YES
YES
END
NO
Resolder or change
Antenna path components
NO
Resolder or change
RX path components
NO
Resolder or change
RX path components