5. Trouble shooting
START
Check Touch Connector
Combination
Check the voltage of TP1~4. Voltage is 2.8V?
Yes
Check the voltage of TP5~8. Voltage is 2.8V?
Yes
Touch IC is well soldered?
Yes
Change the Touch window
Yes
Assemble
TP4
TP1~ 3
TP8
No | Resolder FL403 or |
| Replace Main Board |
No | Replace Main or |
| |
| SUB FPCB |
Rosolder Touch IC
TP5
TP6
TP7
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