What does it mean by Verification fail when I’m able to enter my Apple ID and my Password on another iPhone 7

Lomasz07 Said:

"What does it mean by Verification fail when I’m able to enter my Apple ID and my Password on another iPhone 7"

-------

A Used Device?:

Is this a used device? If so, it is associated to someone else's account. This is the site they should have used, prior to selling it to you: What to do Before you Sell, Give Away, or Trade in your iPhone, iPad, or iPod touch - Apple Support. The seller should have know better.

Welcome to the Apple Support Communities.

Restart your iPhone - Apple Support and try again. If you need more help, see: If you can't connect or sign in to iCloud - Apple Support.

Jack