iOS 16 messed up wireless charging on multiple iPhones

[Ekhangel]

So, I have iPhone 12, iPhone 12 Mini and iPhone 8 at home, all of which are virtually brand new (unusual situation, I know, but don't ask). All three used to work just fine with three of my wireless chargers: a dirt-cheap 10W Chinese charger, a more expensive 20W Xiaomi charger and equally expensive forgot-the-brand Chinese charger. And ALL of the iPhones have started showing strange behaviour with two of the chargers after updating to iOS 16 from iOS 15. The Xiaomi 20W wireless standing charger gives a blinking LED signal about twice a day that goes away after I replace the phone on the stand (or replug the charger's power cable). The cheapest charger occasionally blinks its red LED to indicate a fault and then gets just fine after I replace the phone. The overall behaviour of the three phones with the three chargers is rather inconsistent and without an evident pattern. I tried force rebooting all of the iPhones to no avail.

Have you guys seen some similar behaviour with your phones after the recent update? It obviously can't have anything to do with a particular phone or charger being faulty. It seems like the iOS 16 has messed up the compatibility of the phones with third-party chargers (actually, I don't have the original Magsafe charger to tell for sure).

I'm on the verge of just covering up the power LED on my Xiami charger and never giving a heck again, as I don't need that much charging anyway (home officing here). Do you think a phone sitting on a charger that occasionally refuses to charge it for prolonged periods could cause some damage in the long term? Unlikely, but just making sure.

Also, I'll be trying to disable the optimized charging option for testing.

 

[Bushman008]

So, I have iPhone 12, iPhone 12 Mini and iPhone 8 at home, all of which are virtually brand new (unusual situation, I know, but don't ask). All three used to work just fine with three of my wireless chargers: a dirt-cheap 10W Chinese charger, a more expensive 20W Xiaomi charger and equally expensive forgot-the-brand Chinese charger. And ALL of the iPhones have started showing strange behaviour with two of the chargers after updating to iOS 16 from iOS 15. The Xiaomi 20W wireless standing charger gives a blinking LED signal about twice a day that goes away after I replace the phone on the stand (or replug the charger's power cable). The cheapest charger occasionally blinks its red LED to indicate a fault and then gets just fine after I replace the phone. The overall behaviour of the three phones with the three chargers is rather inconsistent and without an evident pattern. I tried force rebooting all of the iPhones to no avail.

Have you guys seen some similar behaviour with your phones after the recent update? It obviously can't have anything to do with a particular phone or charger being faulty. It seems like the iOS 16 has messed up the compatibility of the phones with third-party chargers (actually, I don't have the original Magsafe charger to tell for sure).

I'm on the verge of just covering up the power LED on my Xiami charger and never giving a heck again, as I don't need that much charging anyway (home officing here). Do you think a phone sitting on a charger that occasionally refuses to charge it for prolonged periods could cause some damage in the long term? Unlikely, but just making sure.

Also, I'll be trying to disable the optimized charging option for testing.

Yep - my 12-mini has been bad on various wireless chargers since update to iOS16 and is totally dead this morning!
We all have days where the phone didn't charge on the QI due to location or something but upto update the phone was pretty good (there were a few anomillies with magsafe via travel brick) and I'd have no issues using in the car all day on old Samsung wireless cradle except in extreme temp and phone in direct sunlight... this week on multiple multi-hour journeys the phone would throw up overheating warnings in normal, non-sunlight conditions (even on short trips) so I had to remove the case and and aim airvent at it and even this wasn't enough on last long trip - had to switch to battery save mode for it to actually operate the wireless airplay (nav & music) and charge.
This morning the phone was on an old QI which I don't use very often (wife's handset was on the one I normally use) and it wouldn't wake - ok flat I assume - so put it on the normal pad and it shows only 3W of output but leave it there for 15-mins expecting it to wake enough to ramp up (normally starts around 5-6W and ramps to 9-10W) the charge rate but no. Now have tried Magsafe with Apple iPad mini brick, lightning - USB-C and USB-A, trusty QI wireless battery pack and so far nothing has woken it up - currently plugged into mpb to see if the device is recognised and screen is just 0-backlight - no joy either - arrrrrrrgh!

 

[Ekhangel]

Yep - my 12-mini has been bad on various wireless chargers since update to iOS16 and is totally dead this morning!
We all have days where the phone didn't charge on the QI due to location or something but upto update the phone was pretty good (there were a few anomillies with magsafe via travel brick) and I'd have no issues using in the car all day on old Samsung wireless cradle except in extreme temp and phone in direct sunlight... this week on multiple multi-hour journeys the phone would throw up overheating warnings in normal, non-sunlight conditions (even on short trips) so I had to remove the case and and aim airvent at it and even this wasn't enough on last long trip - had to switch to battery save mode for it to actually operate the wireless airplay (nav & music) and charge.
This morning the phone was on an old QI which I don't use very often (wife's handset was on the one I normally use) and it wouldn't wake - ok flat I assume - so put it on the normal pad and it shows only 3W of output but leave it there for 15-mins expecting it to wake enough to ramp up (normally starts around 5-6W and ramps to 9-10W) the charge rate but no. Now have tried Magsafe with Apple iPad mini brick, lightning - USB-C and USB-A, trusty QI wireless battery pack and so far nothing has woken it up - currently plugged into mpb to see if the device is recognised and screen is just 0-backlight - no joy either - arrrrrrrgh!

Wow, you got me a little nervous here! All of the phones are on warranty but I am considering refraining from QI now for a while until the next update. Another part of me calls BS on such an approach though… I don’t even have any Lightning dock left at home.

 

[Ekhangel]

Wow, you got me a little nervous here! All of the phones are on warranty but I am considering refraining from QI now for a while until the next update. Another part of me calls BS on such an approach though… I don’t even have any Lightning dock left at home.

Just bought a new Hama 15W QI charger. Looks like iPhone recognizes it as a fast charger as it's giving the fancy charging animation not seen with the previous chargers. All seems fine with this charger except that the phone is considerably hot after removing from the charger. Not very hot but still. Is this level of heating up normal with the Apple 20W Magsafe?

 

[Bushman008]

Ok, I left mine overnight without charging and in the morning it woke enough to show the connect power icon so I charged it and it's been behaving better - took it to local Apple store and they ran diagnostic and there was a question mark on the software relating to the update but all else was ok - so at somepoint I'm going to commit the time to a clean install and "manually setup new phone" process rather than carry across any glitches from a backup reload

 

[PetterPan]

My IPhone 12 Pro Max charge for only a few minutes now after updating to ios 16. Same on both my original magsafe chargers. Any fix for this? Have original case too.

 

[Ekhangel]

Well. I've had only one "blinking LED" case on my new Hama charger so far (with the phone being correctly positioned), and the old Xiaomi one sporadically blinks too. No severe problems so far though. Something's definitely been messed up by iOS 16 and the issue is entirely intermittent and inconsistent, effectively preventing us from troubleshooting - as usual...

 

[zerolight]

Has happened a few times using my MagSafe charger and 11 pro max. Woke up this morning to 12% charge. Last time a reboot cleared the problem. Charges fine on a wire.