Help remive phone

Solution
I'm guessing Google account but it still doesn't make much sense.

alex775sst; if you need to update your account, you don't start off by trying to change the number. Log in first with the account as it is then find the way to change the details.
I'm guessing Google account but it still doesn't make much sense.

alex775sst; if you need to update your account, you don't start off by trying to change the number. Log in first with the account as it is then find the way to change the details.
 
Solution