Troubleshooting
Display
Symptom
Potential
Root Cause
Procedure
T044: Multi-touch poor
response
T045: Multi-touch no
response
T046: Multi-touch erratic
response
Connectivity
issue
●
Check if connectivity between Display
connector and Logic board are normal.
● If they are not fully buckled, re-assemble and
then retest.
Connectors Location
Touch screen
Fingerprint
sensor
●
Remove Display module, fit a replacement part
without adhesive and test.
●
If issue is resolved, apply adhesive and fit new
display module.
Disassembly
●
Display
Component issue
● Use a good Display and Logic board to cross
check with original ones.
● Replace the defective component.
Disassembly
●
Logic board
●
Display
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