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Repair information, troubleshooting tips, and guides for the sixth iteration of Apple iPhone, announced on September 12, 2012. Model: A1428, A1429

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Faulty Battery? Apple logo keeps looping ONLY on replacement battery

So the other day I tried to fix my iPhone with the iFixit battery, and not only did some wierd striped lines show up, the iPhone itself would not turn on, instead it would constantly loop through the apple logo and would not restore when I tried it through DFU mode.

Then I put my old battery back in and voila, everything works well (except the battery percent doesnt change, oh well, better than not working at all.) Anyways, this leads me to believe that the iFixit battery is clearly faulty, since it is not a mistake on my part as I replaced it the exact same way as my original battery, and it did not work.

Is there something that I'm missing when I replace the battery? Or do i just have a faulty replacement battery?

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2 Answers

Most likely the battery is ok, sound like pry damage next to the battery conector. When you removed the original battery you might have damaged a few componets on the logic board, it's a very common mistake. There are resistors and capacitors very close to the conector. If you don't have experience with board level repaired take it to your local repair shop for inspection.

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I can see how that may have caused the problem, however it only works with one battery - the original one, I have replaced and switched them multiple times with the same results.

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I had a problem with one battery that is a little different, it started out by randomly restarting then it got worse, I was ready to replace the phone when I discovered that it was the battery, I swapped it out and I have had no problem since. I did however put that battery in a different phone and it acted exactly the same. I dont know if this helps you or not but it might.

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