iPhone 4 keeps searching for signal
My iPhone 4 keeps "searching" for a network. And it doesn't register "No Sim" when I remove this sim. I've opened it up, but I'm not sure if the blue coil is damaged.
第四代iPhone。维修过程直观易懂，但前置玻璃和LCD面板无法分开，只能作为同一零件更换。GSM版本， 8, 16, or 32 GB 容量 / 型号 A1332 / 黑色或白色
This problem can happen if you disconnect the battery or if the battery get disconnected by it. You can tell if this is what happened because the year will say 1970 or so. The best way to solve this is to connect to WiFi and sync to the correct time. Then, switch airplane mode on/off a few times, remove the SIM card, and power off your iPhone. Reinsert your SIM and that should do it! Good luck with that.
The coil looks okay, the symptom looks more like a baseband logic or hardware issue.
FYI this is the common procedure to resolve reception issues
If the phone is showing reception issues, try the following
Remove all external accessories to rule out 3rd party accessories that could block or even interfere with the signals
Test the reception on another known good identical phone to rule out coverage issues
Reboot/restore or upgrade the phone software to rule out potential software issues.
If none of the above works, there are probably hardware issues.
I've observed newly powered on iphones constantly display "searching" until the system clock is synchronized with apple servers and airplane mode is cycled. The baseband was stuck on wrong config data because the clock is off. reboot or just recycle the airplane mode should clear it out.
If it still doesn't work, go to settings-general-about to check the IMEI\baseband virsion\ICCID is abailable. Missing IMEI and version means that the baseband is not working, Having these but the ICCID is blank means that the SIM card is not linking with the phone. Both cases are difficult to repair
Hello everybody- This thing can happend when you open your iPhone 4S, change the LCD screen or change battery. For me- as I work with iphones the solution what has helped me is simple- first of all go to settins- reset- reset network settings.. Your phone then resets all network settings and 90% of the time your signal comes back as it was! :) Remember that resetting all network settings will delete your wifi passwords as well- so you need to connect again in every place you have joined wifi. Hope this will help many iPhone owners! :)
Then next to the blue coil there should be white coil
Is that one in its place
Also conect the iphone to itunes that also sometimes gets it back up n runing
Also check the signal antena there little silver pins that go between the loud speaker and the frame if they r broken ur signal is weak
I had the same problem , I took the Iphone 4 to a recognized technician and he fixed the problem , it was a hardware problem, the part of the Iphone responsable for reception and transmiting I think it is the antenna and the technician replaced it and now the Iphone 4 is working smoothly.
How To Fix An iPhone That Says Searching:
1. Turn Your iPhone Off And Back On Again
2. Update Your Carrier Settings, If You Can
3. Reset Network Settings
4. Fix Problems With Your SIM Card
5. DFU Restore Your iPhone (But Read The Warning, First)
6. Repair Your iPhone
Nice to see you here, thanks for the article
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