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Released September 21, 2018. Models: A1921, A2101, A2102, and A2104 / Available as GSM or CDMA / eSIM or nano-SIM / 64, 256, or 512 GB / Silver, Gold, or Space Gray (Pronounced "iPhone 10 S Max.")

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iPhone stuck in a boot loop when battery is over 70% full

I purchased a replacement battery with from ifixit and calibrated it as instructed.

it worked fine for about 48 hours. Now though once thr charge goes above 70% the phone get extremely hot, crashes and the battery shows 0% and will reboot constantly until the battery drops below and will then work perfectly.

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Scratch that. It works for approx 4 - 5 mins than crashes

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Robert Bendall double check your work and make sure you did not accidentally knock any components of the board. If all that looks ok contact iFixit and see if you can get a new battery and re-evaluate with that.

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Robert Bendall will be eternally grateful.
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