Cannot sign in My Macbook Air 13
Hi i have a Macbook Air 13inch ( Mid 2013) and it was with Mac os Catalina.
and some of my account apps/ Photoshop was not supported by Catalina so i have Downgrade my OS to 10.9.5 ( original OS of this Macbook air)
Now i cannot sign in my Apple ID on this Mac.
whenever i try to Sign, it say
An Apple ID verification code is required.
Type your password followed by the verification code shown on your other devices.
i got the verification code on my iPhone.( my iPhone with 12.3.1 version IOS) and i have click Allowed then it show a Verification 6 digit code. but where i have to enter it?
in my iPhone it say
Apple VERIFICATION CODE.
ENTER THIS VERIFICATION CODE ON YOUR MACBOOK AIR TO SIGN IN.
2 I try to switch off my Two-step verification and Two-Facttor verification on my Phone and iCloud web browser. still it not show any button to switch off it.
Please kindly give me any solution to fix this error.