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Repair information and guides for the iPhone 6S released by Apple on September 25, 2015. Models: A1688, A1633

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Fake Charging and Rebooting 1 mont after battery replacement.

So this is the issue :

  • Battery Changed to new oem battery about 1 month ago.
  • Phone wont stay on, reboots like 1-10 minutes from starting to use it.
  • Constant reboots connected to PC, fine on Charger.
  • Charges from 1% to 100% (i would say fake charge) in 10 - 30 seconds and shuts down immidiately when taken from charger, unless the phone has been in the charge for time where normal working iphone charges 20%.
  • Phone has only been used on PC or original Apple charger that came in the box.


Tristar, Battery or Lightning Port issue?

Update (11/01/2018)

New OEM battery broke after just week in the phone. Wonder if its the phone or replacement battery causing the issue?

Answered! View the answer I have this problem too

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Addition to those iPhone cannot determine state of the battery.

And it seems it never thinks battery is too low to charge before bootup and just hits reboot loop when connected to charger untill there is sufficient charge on battery.

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So far. After just unplugging battery and letting phone be without battery connected for 5mins and then plugging back in, it have been working perfectly. But soon as i connect it to PC it goes haywire and starts rebooting etc.. again. I ordered new battery so ill see if its the issue later.

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I would try a replacement battery first. It is the weakest link in the chain and it’s not uncommon for poor quality batteries to make their way through the supply chain, even with reputable vendors.

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I will buy another OEM battery and see if it fixes it.

It stopped charging completely today just stuck at 1% so could very well be battery gone bad.

I did check the small caps top of battery connector and they seem to be ok so at least thats not it.

Previous shop did not even bother to tape the battery to chassis.

I did check battery and mainboard battery connector voltage and battery were at 3.46v so its either not being charged or just dead.

Edit: Seems like it started working again with only reseating battery connector after measuring battery voltage. This time it showed the low battery icon rather than apple logo when botting, it booted normally at 3% battery and have seemingly normally charged to 40% so far. Now i need test this device for few 80% to 0% to 80% cycles to see if it reboots under battery test load. If not then im not exactly shure what the issue was. I might still replace battery just in case.

Edit 2: And soon as connecting it to PC the problem comes back, original charger worked fine untill i plugged the phone to pc. Needed another disconnecting battery, waiting few mins and reconnecting to get it back and running properly.

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Changing battery fixed it. Working perfectly now.

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Jarno Matikainen will be eternally grateful.
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