crwdns2933803:01crwdne2933803:0
crwdns2933797:0REWAcrwdnd2933797:0crwdne2933797:0
crwdns2936043:0crwdne2936043:0 crwdns2933505:0crwdne2933505:0 REWA
- crwdns2933769:0crwdne2933769:0
- crwdns2933771:0crwdne2933771:0
- crwdns2933801:0crwdne2933801:0
crwdns2933807:0crwdne2933807:0
| + | [* black] First of all, let’s check the motherboard. The motherboard is not deformed or water damaged. |
|---|---|
| + | [* black] Then we install the motherboard to test. Connect the display and battery. Turn on the phone. The touch screen is not working. |
| + | [* black] Next, we measure the touch connector. Pin 21 of the connector is found to be open-circuited, which indicates that the circuit connected to pin 21 is faulty. |
crwdns2933777:01crwdne2933777:0
crwdns2933779:0crwdne2933779:0
crwdns2915182:0crwdne2915182:0
crwdns2933777:02crwdne2933777:0
crwdns2933779:0crwdne2933779:0
crwdns2915182:0crwdne2915182:0
crwdns2933777:03crwdne2933777:0
crwdns2933779:0crwdne2933779:0
crwdns2915182:0crwdne2915182:0