L2E Repair Document
TCL
Communication Ltd.
Rev.
4017A_D_E_F_X_S Level 2 enhance Repair Document
Page
1.0
45/54
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Check whether power key
FPC is damaged
N
Y
Check whether power key
connection is good
Power on
failure
Replace PCBA
Charge for 15 minutes,
check whether can power
on
Replace power key
FPC
Y
N
R e w e l d p o w e r k e y
FPC
N
Check whether battery status is good
N
Replace it with a new
battery
Y
Check whether U301 is
damaged
N
R e w e l d o r R e p l a c e
U301
Y
