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iPad Air Wi-Fi + Cellular, model no. A1475. Available in Space Gray or Silver, with 16/32/64/128 GB configurations.

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Changed front panel, battery indicator changes & turnes off randomly

I changed the front panel unit of my ipad air. When I turn it on now, the ipad turnes off automatically after a few minutes. Also, the battery indicator changes between 1% and 100%.

The repair worked well except for step 41 when I reattached the new front panel. I had the same problem as other commentators discribed: The cables of the new panel seam longer than the ones of the old one and “this side of the digitizer keep popping out.“, as @camerd33 discribed it as well. I don’t think this is what causes the problem with the batterie, though.

In step 35 I put two playing cards in between the battery and the logic board. May that have damaged the connection?

I did not reopen the ipad yet as I was hoping someone could give me a hint on what to look for specifically, once I do reopen it.

This is the link to the manual I used: https://de.ifixit.com/Anleitung/iPad+Air...

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Update (24.04.2020)

As @hootonberg suspected I might have nocked out a component, I looked into my tools again and found this little square thingy of which I attach two pics. Might that be something that is now missing in the Ipad? Sorry for coming back to that question only now again.

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Oh, maybe its relevant that I used a fan to heat the sides of the ipad instead of the iOpener. I tried not to heat anything but the sides (not more than the white part) and not to heat it too long or too hot - but who knows. Also, the suction cup did not work at all for me. So I had to use some force to get under under the glas. Maybe I distroyed sth during that process?

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It’s hard to tell, but it doesn’t look like you disconnected the battery entirely. Playing cars really aren’t stiff enough to separate the battery from the board terminals. Before you disconnected the displays, did you make sure it did not have power by attempting to power on?

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Hey @hootonberg, thanks so much for your quick answer!

I did not try to turn the power on during the repair. The manual does not say its obligatory to disconnect the battery (step 35). It just states to take out the screw and recommends to put sth in between the battery and logic board. I took the idea with the playing cards from the explanatory video on kaputt.de, from where I also bought the repair kit (https://www.kaputt.de/anleitungen/27825/...).

So do you think I could have caused a short and thats what now causes the problems with the battery? Would I have to change the battery in that case?

I don't necessarily believe the battery has been damaged but I think you may have damaged something on the board either by knocking off a component or shorting something out. I've seen this issue before but I can't quite remember what it is. It has something to do with the battery communicating with the device to report battery information like percentage.

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