How to change my phone number on iCloud Keychain ?

same problem

I have the same problem. The only thing I did is I just either make a new Apple ID or contact apple supportℹ

Quoted from another thread. This worked for me. Best of luck.

"hpmarcusJul 6, 2014 1:37 PM Re: Cant activate keychain cause the phone number on my iCloud changed! Tips?
Re: Cant activate keychain cause the phone number on my iCloud changed! Tips?in response to randers4

Already did that and still does not work. But I have found a solution:

On the iOS, when typing the iCloud passcode (4 digit), go to the "I forgot my password" option. You will be asked to repair the keychain saved configurations, choose yes. Then, type a new iCloud passcode (or the same as the previous one) and, finally, your phone number. Your mac should be able to see your iphone now to finish the keychain activation.

Sometimes Apple support is more a hindrance than a help!"

Hello, I am confronted with the following problem: Frequently I see the information "approved iCloud key ring, bag then iCloud password security code then put me on hold to receive another code via SMS. the problem is that wait long enough and often receive nothing, once we receive and when I put my code says it's not like !!!! validity solve the problem. Thanks