The certificate did it for me: https://forums.macrumors.com/thread...n-at-icloud-system-preferences-panel.2341297/
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iPad 4th gen can’t sign into iCloud
- Thread starter jordanfc21
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The certificate worked for me after a logout, reboot and login again. https://www.apple.com/certificateauthority/AppleISTCA2G1.cer
**iPad 4th Gen on iOS 10.3.3
Still doesn't operate for me. It logs in. Shows the profile picture on the iCloud page. But then logs back out without error.
I will just use the Appstore method. I don't really need full icloud features. When that added certificate expires on 20th May im sure it will just start again. They should fix it.
I will just use the Appstore method. I don't really need full icloud features. When that added certificate expires on 20th May im sure it will just start again. They should fix it.
So, it’s a gamble… It worked for me but I didn’t tried iMessage though. For @Urbanpixels, this solution didn’t worked. The certificate is still on my profiles and the old iPad work as it should.
Again, we users are left to find a workaround, guessing that it’s a problem on the Apple servers side…
I’ve left a feedback to Apple but I have some doubts that they are hard pressed to resolve this for old devices.
I could reproduce the iCloud login.
Cert needed has changed time to time... Apple IST CA 2 - G1 or CA 8 - G1.
Once installed, iCloud login partially works with 2FA. It may go through without error but usually fails to actually login.
So, on next try, after inputting credential then hit go, wait for like 10 seconds.(still waiting for login)
Kill Settings app and relaunch the app again.
If you input iTunes Store & App Store credential &/ iMessage Apple ID prior to above, you'll be able to use almost all the iCloud related services.
Cert needed has changed time to time... Apple IST CA 2 - G1 or CA 8 - G1.
Once installed, iCloud login partially works with 2FA. It may go through without error but usually fails to actually login.
So, on next try, after inputting credential then hit go, wait for like 10 seconds.(still waiting for login)
Kill Settings app and relaunch the app again.
If you input iTunes Store & App Store credential &/ iMessage Apple ID prior to above, you'll be able to use almost all the iCloud related services.
I do not use 2FA nor iMessage on this old iPad and login with a different credential for Appstore and iTunes. This one had no problem to connect prior to the certificate, weird!
This worked for me as well. I'm also on an iPad 4th Gen on iOS 10.3.3.
Previously I hade restored the whole system and logged in on App-store with 2FA.
Now I downloaded the Cert using Safari and managed to login on iCloud. Curiously I didn't need to provide 2FA when logging in to the iCloud-account (probably since I already was logged in to the App-store). However I was prompted giving the password for one of my Mac's. I'm guessing it had to do with the Apple keychain.
In conclusion this method may work if you
1. Have an iPad 4th Gen on iOs 10.3.3
2. Have a clean install
3. Are already logged in to the App-store using 2FA.
I created this account to confirm that this work and also to thank you for providing the help.
Kind regards.
Worked for me installing - https://www.apple.com/certificateauthority/AppleISTCA2G1.cer … spoke to Apple and they will release a update “soon”
Someone said to me (on the Apple Support forums) that the certificate was extended to 2031…
**Oh well, still May 22th???
Last edited:
So, indeed I am able to log into iCloud again, but I was unable to "restore from iCloud" with my Apple ID to retrieve my previous content. So partial win?
I have an update on my situation here. I had escalated this issue through Apple phone support who raised this again with their engineering team. I'm not sure what changes were made, but my iPad has now completely signed in to iCloud, and I'm able to access all of the services (the iCloud Drive app even installed once I had signed in!). If you have no luck with any of the fixes, I'd recommend calling and raising this with Apple. They will say due to the device being obsolete and not able to update past 10.3.3 that this can have an issue communicating with the server, but it is possible! 
It looks like you do not need the certificate anymore when I sigined into an iPhone 5s running iOS 10.3.3 after downgrading from iOS 12.5.5!!!