What happens when you try to activate it. If you're getting an "invalid SIM" message, then it is not unlocked.
How to unlock your iPhone for use with a different carrier - Apple Support
What happens when you try to activate it. If you're getting an "invalid SIM" message, then it is not unlocked.
How to unlock your iPhone for use with a different carrier - Apple Support
There's nothing anyone here would be able to help you with either. We are just users like yourself. You'll need to continue to work with the carriers.
sprint iphone 5c model A1456 that is unlocked but will not activate on at