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ios update 16.4. Update Apple ID settings log in loop

ios update 16.4. Update Apple ID settings log in loop


brand new iPad Pro 12.9 M2. (Two months old). Just updated to 16.4 and now it keeps requesting to update Apple ID settings by logging in. I log in then it keeps asking for iPad pin and then iPhone pin. I haven’t updated my iPhone yet but i noticed that in my settings on my iphone my keychain syncing had been turned off. It also off on my iPad but as the log in loop fault is occurring I can’t switch it back in. Apart from the log in requests which gets stuck in loop there does not seem to be any actual problems with using my devices yet.


I don’t think I’ve ever had to log in my iCloud after an update before. Is it just new in 16.4?


Should I just wait for another update. I tried logging out and back in on my device but still problem.


Please someone put me out of my misery. Thank you.

iPad Pro, iPadOS 16

Posted on Apr 6, 2023 5:12 AM

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Question marked as Top-ranking reply

Posted on Apr 10, 2023 6:49 AM

Same here, over two hours on the phone with apple support and as of yet no solution. I have a follow up appointment tomorrow, the support guy needed some time to sort a few things out. We'll see if it works out.


Some more details:


  • The issue seems te be related to the encryption on a few services, like KeyChain and HomeKit. Other non-encrypted services continue to work just fine.
  • It happens on all devices related to this iCloud account (iPhone, iPad, MacBook).
  • Resetting a device or settings doesn't help
  • Logging all devices off of iCloud, restarting them and trying to log them in one by one doesn't help
  • Setting up a new device with the borked account doesn't help
  • There is no way to somehow reset the encryption/keychain/whatever (I tried all available options with the support guy).
  • Removing and changing device codes didn't help
  • Removing the recovery key didn't help (which I now cannot enable anymore, it triggers the same loop...)


Let's hope this get fixed very soon.


77 replies

Jun 26, 2023 3:55 PM in response to armatum

@armatum - this issue is still present in iOS 16.5.1 however, we are expecting (and hoping) the issue will be resolved in the next official iOS release 16.6. If you want to help, you can test future releases by enrolling your device into the public testing program (you can search for how to do that). But please note, there is no guarantee the fix will be included in the final 16.6 stable public release, but so far it looks promising that we'll have a fix soon. Lastly, many have commented about waiting for iOS 17, and just my two cents... I don't believe we will have to wait for iOS 17 to be released in September, as the fix will likely be released in iOS 16.6 or a future 16.X release.

ios update 16.4. Update Apple ID settings log in loop

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