Tag Archives: t-mobile

Tips & Tricks

Invalid SIM card after Permanent Unlock

What can you do when your phone displays Invalid SIM Card after Permanent Unlock using T-Mobile Device Unlock App You might find yourself in the situation where your T-Mobile USA phone will display "Invalid SIM card" after Permanent Unlock. The...

Tips & Tricks

Error Device Unlock App T-Mobile

Device Unlock App Error types and significance There are some cases when the Device Unlock app will return an error message. Depending on this message there are several steps that you can perform to move past these errors. We will...

Tips & Tricks

Samsung does not ask for the unlock code

What to do when your Samsung doesn't ask for the unlock code? First thing, DO NOT worry There is one thing you can try when your Samsung doesn't ask for the unlocking code. Some require you to already have the...

Tips & Tricks

Device Unlock App

If your phone displays the message 'This device can be remotely unlocked if eligible. Please use the Device Unlock Application to unlock the device' after you insert a non-accepted SIM card, then your handset is locked to Metro PCS or...