Good morning, I have a ATT Galaxy Note9 that I no longer need, and was thinking of selling on Swappa. I sent to ATT for unlock code which I received, but the instructions said to insert non-ATT sim and it would come up with a box to put in the unlock code. I did not have a sim from another carrier. I found instructions in a ATT forum to dial a certain number and a unlock box would come up, enter the code and it says unlock successful. I did this and I did get the unlock successful message.
My question, is there a way to actually check it is unlocked without putting another SIM in it? I know there are IMEI checkers online but none show if it is locked or not.
My question, is there a way to actually check it is unlocked without putting another SIM in it? I know there are IMEI checkers online but none show if it is locked or not.
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