iPhone 12 Pro Max doesn't wirelessly charge after installing iOS 17.4.1

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Level 1

8 points

iPhone 12 Pro Max doesn't wirelessly charge after installing iOS 17.4.1

I am having a similar problem after updating my iPhone 12 Pro Max to iOS 17.4.1.

Never had an issue with wireless charging before, but since the 17.4.1 update, the same phone in the same charger that's worked for a few years doesn't work anymore. I tried a different wireless charger and the wireless charger built into my car and they don't seem to work either (though both were fine before the upgrade). I also tried a relative's iPhone on my chargers and all of them work fine.

The phone seems to connect to the charger okay - I see the green charging indicator and all seems well. About a minute later, the charging stops. This happens regardless of how much battery life is left on my phone - when I first noticed it, my phone was at 38%, but it occurs no matter what.

I've tried rebooting the phone, killing running apps and everything else I can think of, but nothing makes a difference.

My iPhone is model MG9N3LL/A.

iPhone 12 Pro Max

Posted on Apr 11, 2024 01:25 PM

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Answer 1

VinceInNY Author

Level 1

8 points

Apr 12, 2024 12:11 PM in response to LD150

Really? So it's a pure coincidence that it started to not work immediately after I installed the 17.4.1 upgrade?

I find that hard to believe - especially because it seems to charge for maybe a minute before going offline. Same phone, same charger...the only variable is upgrading iOS, and I'm to believe that the problem is a bad charging chip...

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Answer 2

LD150

Level 10

95,571 points

Apr 11, 2024 03:40 PM in response to VinceInNY

Following your trouble shooting it sounds like hardware failure in the charging chip.

Back up, reset to factory then set up manually. If it still does it, reset to factory again and take or send it for repair

https://support.apple.com

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Answer 3

VinceInNY Author

Level 1

8 points

Apr 12, 2024 12:17 PM in response to VinceInNY

Here's a small update...

Following a tip I saw elsewhere, I tried powering off the phone and putting it in the charger with the power off. It charges fine like that.

Then, with the phone still in the charger, I turn on the phone and let it boot up - it remains charging like that until it reaches a full charge. Once it reaches full charge, things change. Once it discharges enough to need more juice, the phone seems to disconnect from the wireless charger and it won't reconnect until I go through the reboot cycle again.

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