Hi received an unlock code with the following instructions from ATT for my paid off Samsung Galaxy S7.
1. Power off the device and remove the SIM card.
2. Power on the device.
3. Enter #0111*, the unlock code, and #. The device cycles off and back on.
Note: You are allowed five attempts to unlock before your device permanently locks to the AT&T network.
I did exactly as outlined, but had to add a sim from another carrier between step 1 and 2 to actually bring up the unlock screen. Then I tried to enter the code as mentioned in step 3 but the unlock did not succeed. I'd appreciate some help in unlocking my device