why is icloud not accepting my birthday?
it wants me to update my information (????) , when I enter my birthday it spins and then resets to ask the question again.
Remote Desktop
Go to iforgot.apple.com enter only Apple ID and click on continue .
If you have checked the box ( b ) of answer security questions , in that scenario the password can also be reset using the month / day / year of your birthday ( click on the drop down arrows of month , day and year and fill up credentials ) .
An option will be shown ( a ) back ( b ) continue .
Verify your birthday to continue , fill up the credentials and click on continue , a small circle rotates
A window appears answer your security questions , fill up the credentials and click on continue , a small circle will rotate .
It will prompt.
Enter a new password ….
Verify password …..
Your password must be at least 8 characters , include a number , an uppers case letter , & a lower case letter .
So fill up the credentials it will show ( a ) back ( b ) continue .
Click on continue and save .
In the above steps , the date of birth your entered is incorrect , so it will spin and further not move .
In these scenario , if you don't remember the correct date of birth , the security question can never be changed in this process .
If you knew the correct answers for security questions / Apple ID password and can access the account using appleid.apple.com change the date of birth https://support.apple.com/en-us/HT204164
If you want to change the complete set of security questions and answers they can be changed https://support.apple.com/en-us/HT201363