Verification code
cant access the account to turn off “find my iPhone”... they keep send the verification codes to put in but the device is unusable! I don’t know what else to do to access the account
iPhone X
Question marked as
You need another trusted device or telephone number.
See Two-factor authentication for Apple ID - Apple Support:
A trusted device is an iPhone, iPad, or iPod touch with iOS 9 and later, or a Mac with OS X El Capitan and later that you've already signed in to using two-factor authentication.
Get a verification code and sign in with two-factor authentication - Apple Support
If you can't sign in with two-step verification using your Apple ID - Apple Support
Change Trusted Device list for your Apple ID on Mac - Apple Support
4 Ways to Change the Trusted Number for Your Apple ID on iPhone or iPad