I was able to resolve it. 🤯
Context and troubleshooting
- I tried booting up on safe mode and nothing, same error.
- Created a secondary account on my machine as admin and I was able to login on iCloud which made me think that could be related to permissions maybe?
- Open the console log, and try to login again on iCloud and notice a couple of errors:
Sandbox: callservicesd(9896) deny(1) file-read-data /Users/xxxxx/Library/Preferences/com.apple.AddressBook.plist
Sandbox: suggestd(9915) deny(1) file-read-data /Users/xxxxx/Library/Preferences/.GlobalPreferences.plist
Sandbox: 3 duplicate reports for fmfd deny(1) file-write-data /Users/xxxx/Library/Preferences/com.apple.icloud.fmfd.notbackedup.plist
Which lead me to think that indeed, it was a permission error. Upon a successful authentication, iCloud will try to update the local system using the keychain access, however if there's a problem with KeyChain, iCloud will just fail silently.
Solution
1. Backup KeyChain (Open terminal)
mkdir -p ~/keybackup/
cp -R ~/Library/Keychains ~/keybackup/
2. Reset keychain
3. Try to login again on iCloud... success! 🌟🔥💥
SwimButterfly wrote:
After upgrading to Mojave, I'm unable to login into iCloud on my Mac.
This is what I do:
Settings -> iCloud -> Enter my Apple ID -> Password and then nothing happens:
https://discussions.apple.com/content/attachment/e5b720ff-924d-4a23-8c36-2a8098afc8eb
After entering the correct username/password, I just receive the same screen:
https://discussions.apple.com/content/attachment/187138f1-eba8-4330-94e7-b0f493bdee78
I'm on 10.14.4