L2 Repair Document
TCL
Communication Ltd.
Rev.
ONETOUCH 8085+LKB001X/A
Level 2 Repair Document
Page
1.0
61/71
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Power on failure
Check whether side key FPC
is damaged
N
Y
Check whether side key
FPC connector is damaged
Power on
failure
Replace PCBA
Charge for 15 minutes,
check whether can power on
R e p l a c e s i d e k e y
FPC
N
N
R e w e l d o r R e p l a c e
s i d e k e y F P C
connector
Y
Check whether battery status is good
N
Replace it with a new
battery
Y
Check whether back cover is assembled
well
N
Reassemble the back
cover
Y
Check whether the connection between
battery and battery connector is good
N
R e a s s e m b l e t h e
battery
Y
Check whether battery connector is
normal
N
R e w e l d o r r e p l a c e
battery connector
Y
Check whether the connection between
side key FPC and side key FPC
connector is good
N
Reassemble side key
FPC
Y
Note: If the device can’t power on, please directly proceed with this shooting without system firmware
updating.
