Hiya folks. I have an iPhone 12. It's been fine. I updated to 26.2 3 days ago, now it won't charge. The charging indicator is lit, but it will not charge. Again, before this update, I had 0 issues with the phone.
[Re-Titled by Moderator]
Original Title: 26.2 charging issue.
Force Restart your phone:
What is your Battery Health? An iPhone 12 is likely to have a Battery Health below 80%, where it is due for a replacement, and you may also see a Service Warning for that battery that would have appeared even before the update. The update did not decrease the Battery Health, but may stress an already weak battery that should have been replaced.
Without any resolution, I would recommend scheduling an appointment with Apple and there will be no diagnostic costs.
Genius Bar Reservation and Apple Support Options - Apple
Force Restart your phone:
What is your Battery Health? An iPhone 12 is likely to have a Battery Health below 80%, where it is due for a replacement, and you may also see a Service Warning for that battery that would have appeared even before the update. The update did not decrease the Battery Health, but may stress an already weak battery that should have been replaced.
Without any resolution, I would recommend scheduling an appointment with Apple and there will be no diagnostic costs.
Genius Bar Reservation and Apple Support Options - Apple
Dennisfromnorway wrote:
Battery health is 80%.
When battery health drops below 80%, the battery health screen may change to indicate that the battery needs servicing, and you also may get a one-time notification.
That's what happened with my iPhone 12 mini when battery health dropped from 80% to 79%. I then took the phone to an Apple Authorized Service Provider and had them replace the battery.
I have an iPhone 16 and this happened to me. I had to use a Mag charger.
Do you see the Battery Service warning? It is only expected to last 500 charge cycles and bad things start happening when it needs replacing including unexpected shut downs and unreliable charging behavior. I suspect there are very few iPhone 12's that have never had their battery replaced. Make sure it is done at Apple or Authorized Apple Service Provider.
"iPhone 12 won't charge after updating to iOS 26.2: Hiya folks. I have an iPhone 12. It's been fine. I updated to 26.2 3 days ago, now it won't charge. The charging indicator is lit, but it will not charge. Again, before this update, I had 0 issues with the phone."
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Update on This:
Have up updated to iOS 26.2.1 since your Original Post (Jan 19, 2026 11:08 AM)? If so, have you had your Battery replaced since? If both is a "Yes", then it is an update bug, regardless of the 80% Battery Health.
Report this to Apple:
Do your Part: Provide Apple with feedback on this, letting them know about this issue. Apple may not get back to you directly, but the more feedback they receive on this, the more they will know what is occurring, and what bug fixes to include in updates to come. Apple will know nothing of this, if you don't report it to them.
The same things happened to me. The other day updated to iOS26 it said there was liquid detected in the charging port so couldn't charge. Now I’ve updated again to iOS26.2.1 and it doesn’t even detect a charger is plugged in at all. Forcing a reset has worked but later it’ll need forcing again to charge. What a nightmare 😤
I have already tried the forced restart, but it didn't help.
Battery health is 80%.
My phone is only used for phone stuff. messages and calls. So it hasn't been constantly drained and fully charged every day since I got it.
"Thank you for the advice. I am facing the same issue and have submitted a bug report - fingers crossed!"
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Excellent job troubleshooting this!
Thanks for doing your part! It will help many, for certain!
No warnings. no random shutdowns or power issues. No problems at all until I installed the update.
Thank you for the advice. I am facing the same issue and have submitted a bug report - fingers crossed!
iPhone 12 won't charge after updating to iOS 26.2
