Once the unlock request is processed, you'll need to:
Make sure you have an active data connection via 3G/4G/LTE or Wi-Fi.
From the Application list, tap Device Unlock. (Note: The application may be located in the MetroPCS folder.)
Tap Continue.
Choose the Permanent Unlock type:
If successful, restart the device to apply the settings.
All you need is an Android device that supports the Mobile Device Unlock app:
HTC Desire 626s
Kyocera Hydro ELITE (C6740),
LG Leon 4G LTE (MS345),
LG G Stylo (MS631),
Samsung Galaxy Core Prime (SM-G360T1)
WARNING: We only refund for "NOT ELIGIBLE FOR UNLOCK" issue, we will not refund any complaint about "Communication Error" or "Server not responding. please try again later.". It is mandatory to check before ordering if your phone have "Server not responding. please try again later." issue. If the answer is yes then you can try to fix this error by performing a hard reset on your phone, or upgrading his firmware. Again make sure your phone can communicate with "Device Unlock App" server BEFORE place your order