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2012年9月12日に発表されたApple社による6番目となる iPhone。このデバイスの修理方法は前モデルと類似しており、スクリュードライバーと開封工具が必要です。GSMかCDMA方式、16/32/64 GB。 本体色は黒と白。

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iPhone 5 randomly crashes & reboot, battery fine.

My problem seems more complex than I thought. I did some research on google and on the actual forums for any answers, only similar issues but nothing that can solve mine.

So here's the situation. I got my iPhone 5 GSM, and it's working perfectly fine. Except for the thing that, sometimes, it ramdomly crashes and reboot by itself. But the problem is, it's not really "ramdom". I mean, for example, suppose that my phone has a dead charge, I will plug it to charge it, so far, everything is fine. After 2 to 5 minutes, the iPhone crash and reboot, and will do this during the whole cycle of the charge. Plus, the iPhone is constently stuck on the same pourcentage of charge (the one the OS display on screen). If, I decide to reboot the phone at full charge, the phone will restart to crash and reboot for a certain amount of time. Finally, at any time, when I plug the charger, the display takes off 5% the charge (e.g. the phone displays 90% charge, I plug it and immediatly drops to 85%).

By searching on the web, I tried many things, I took the battery from another iPhone 5 that works perfectly fine and that dosen't change anythng. I restored to factory defaults, I also upgraded to lastet iOS, tried without a SIM card or any other solution offered to help me founded on google.

So, I'm kinda out of idea for fixing my device, no more than a big headache. It !#^&@@ me off to never know when my phone is almost out of battery when I need it the most.

Can it be a chip repair ? Or something like that ? If I got to throw me into microsoldering, I think I will just change my phone. Please help me, I'm playing my last card on this forum lol.

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This is almost certainly a "gas gauge defect" which if you've ruled out bad battery, then it is likely that FL11 filter has been knocked off the board. Look closely at the battery connector area to see if you see a missing component.

Replace FL11 to solve.

You can get a hint if it is a gas gauge defect by using a third party software like iBackupbot to read the real time log on the phone---if you see the word "gas gauge error" then that's the problem.

This is board repair, but easily done by microsoldering professionals.

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Exactly ! I've got multiple errors for the "gas gauge" according it cannot read the device's temperature and other errors on the log.

Thanks for the software, I didn't know it, very useful ! Now I gotta throw me into microsoldering, but at least I know exactly what's wrong !

Thanks ! You've made my day ! = )

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Hey there. I know this sounds very basic but I used to work for AppleCare, was an iOS specialist. Anyways have you attempted all the restore and reset procedures. What version of iOS are you on?

Lastly I've always found to be able to correct even the most ridiculous iOS Software issues with reinstalled iOS Firmware. Otherwise its probably sure that you have a logic board fault of some sort specially with the Battery charging issues. I know Apple was short term replacing battery faults on certain iPhone 5 models. Mine was one of them.

Thanks, Matt

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Maxyme さん、ありがとうございました!
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