Replaced battery, now won't turn on at all

I've replaced two iPhone 5s batteries yesterday. Followed all the steps possible & have done many battery replacements before these two. After installing the new batteries neither of the phones turned on. One iPhone I plug in & after about 2-3 mins a quick vibration goes throughout the phone but nothing on the screen happens. The other iPhone doesn't respond to ANYTHING.

I've tried everything.

Even when taking the batteries out I put a plastic piece between my tool & the phones frame so there wouldn't be an electrical shock due to the adhesive tabs breaking & in case I puncture the battery. Also before doing anything I disconnect the battery from the port its pluged into. Any luck for these two phones.? Like I said, I've done MANY battery replacements & have never come across this issue before.

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2 Commenti:

Have you tried old batteries again? Or some other batteries?

da

Yes I've tried a new battery & still no luck. I feel lost. I've done hundreds of battery replacements. I have no idea what the problem could be

da

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