Repair the no service error on iPhone 6 6s
Why could be no service on your iPhone? Perhaps the signal around is not good or some parts of your phone got problem. Don't worry, just check it and fix it. In this process, you may need some phone repair tools to help you resolve the problem. I will show you in the next repair process.
1. Go to a space with strong signal and check whether the phone has service, if no, enter "*#06" on the phone dial key for IMEI code, but no response. In this case, we can initially determine the signal failure.
2. IMEI cade displays right, SIM card readable, and Modem Firmware function normally in the phone settings. Then , put the phone on the multi-function heat insulated pad.
3. Remove the motherboard by phone opening tools and then unload the shield plate on motherboard. Connect the motherboard to the PCB bracket.
4. Dismantle the baseband CPU by using hot air gun about 300 degrees centigrade in baseband CPU with BGA paste flux.
5. Clean the tins on the bonding pad and then using digital multimeter test the U1 Y1 pin of the baseband CPU, no resistance. We can make sure the pin has been disconnected.
6. Fix the pin with phone repair tools and re-install the motherboard to the phone, then test it, IMEI code functions back to normal.
This is the short guide about fixing the no service error on iPhone , it is need many kinds of phone repair tools , it's different to find them well, maybe be you can try Vipprogrammer, and you have any problem about phone repair can also consult it.
1. Go to a space with strong signal and check whether the phone has service, if no, enter "*#06" on the phone dial key for IMEI code, but no response. In this case, we can initially determine the signal failure.
2. IMEI cade displays right, SIM card readable, and Modem Firmware function normally in the phone settings. Then , put the phone on the multi-function heat insulated pad.
3. Remove the motherboard by phone opening tools and then unload the shield plate on motherboard. Connect the motherboard to the PCB bracket.
4. Dismantle the baseband CPU by using hot air gun about 300 degrees centigrade in baseband CPU with BGA paste flux.
5. Clean the tins on the bonding pad and then using digital multimeter test the U1 Y1 pin of the baseband CPU, no resistance. We can make sure the pin has been disconnected.
6. Fix the pin with phone repair tools and re-install the motherboard to the phone, then test it, IMEI code functions back to normal.
This is the short guide about fixing the no service error on iPhone , it is need many kinds of phone repair tools , it's different to find them well, maybe be you can try Vipprogrammer, and you have any problem about phone repair can also consult it.
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