Salta al contenuto principale

Rilasciato il 16 settembre 2016. Modelli 1660, 1774 e A1785. Disponibile come GSM o CDMA / 32, 128 o 256 GB / Rose gold, gold, silver, black e jet black.

1361 Domande Visualizza tutte

Ear Speaker and Front Camera working on and off

I have an iPhone 7 plus that I recently repaired that the ear speaker works randomly and the front camera is very slow at coming up and/or sometimes doesn't work in apps such as snapchat. This iPhone has been fixed previously and has been working fine.

Now I've replaced the front camera and speaker with a known working original with the same results. I also uncovered another issue. The phone will get stuck on the Apple logo after rebooting and will only boot normally after I do a hard reset. I tried different batteries and a different front camera flex with the same result. At this point Im scared to update to 11.3.1 or even restore it, because I'm afraid it wont boot properly and brick the phone

Any words of wisdom before the customer makes an insurance claim? Is this maybe a software issue and not a hardware issue?

Risposto! Visualizza la risposta Anch'io ho questo problema

Questa è una buona domanda?

Punteggio 0
Aggiungi un commento

1 Risposta

Soluzione Prescelta

The iPhone 7 series of devices suffers from issues with the Baseband IC, Audio IC and weak traces on the pcb which crack and break. It is a similar design flaw to the iPhone 6 Plus, known as Touch Disease. On the iPhone 7 series, the weak traces are underneath the Audio IC.

In many cases an internal short within the Baseband IC causes the boot looping, which unfortunately, is not repairable because the Baseband is code locked to the logic board. It can also be caused by a broken trace underneath the Audio IC. Replacing the Audio IC and strengthening the weak trace with a micro-jumper can repair this.

If you are curious about the technical nature of these failures, you can listen to this video from Jessa and this one from Jason at STS, they go into a lot of detail regarding this issue. It could be BB or Audio but the info in the video should help you figure out which one.

Questa risposta è stata utile?

Punteggio 3

4 Commenti:

Thanks for the info. I will definitely look into this further. Is this something that could have been caused by me? Im extremely careful with removing the flex. The customer did admit to getting some water in the area where the flex connects although there is no visible water damage.

da

I doubt you (an experienced tech) damaged multiple flexes...

da

Im going to close this and accept your answer. The videos you linked are the exact symptoms Im having. Thanks again.

da

Great! Good luck on the fix.

da

Aggiungi un commento

Aggiungi la tua risposta

Brian Wood sarà eternamente grato.
Visualizza Statistiche:

Ultime 24 Ore: 0

Ultimi 7 Giorni: 1

Ultimi 30 Giorni: 4

Tutti i Tempi: 571