Lenovo VIBE X2 Service Manual - Page 15
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3.5 Speaker has no sound
Speaker has no sound
Replace the speaker, and then
does the phone work normal?
Whether the speaker spring is
normal?
Replace the Sub FPC, and then
does the phone work normal?
Checks the SMT quality of
these components include the
BEAD on the Sub board
Whether these parts are SMT
good? The phone is work good
after heating these parts?
Replace the codec IC
U1001
N
N
N
Y
OK
Y
Replace the
Sub FPC.
Y
OK
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