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Repair information and guides for the fifth generation of iPhone. Model: A1387

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iPhone 4S turns off before reaching 0%

I've changed my iPhone 4S battery with an iFixit battery last April.

Since then my phone keeps shutting off at 20% battery or above. (Most of the time between 25% and 35%)

I have checked the status of the battery with iBackupBot and everything is fine. I have restored the phone. Dis-charged it fully and recharged it fully multiple times. I have tried discharging it and plugging it back in for a few minutes and then let it discharge again.

I was hoping that the phone would "learn" about the new battery over time and that it would end up calibrating itself. But nothing has worked.

Is the iFixit battery a dud ?... Please help.

Answered! View the answer I have this problem too

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I contacted iFixit a few days ago. I have explained everything and a new battery is on its way.

Exemplary service from these guys ! Thank you !

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Same problem with my battery but ive only had it a week

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Contact iFixit and ask for a replacement.

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It does sound like a bad battery to me. I would try another battery.

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fawzid will be eternally grateful.
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