Motorola Network Unlock Tool Link -
Some newer Motorola phones do not use a manual code. Instead, they use a pre-installed app: T-Mobile/Metro : Look for the "Device Unlock" app in your application drawer. System Settings : On newer Android versions, go to Settings > System > Advanced > Device Unlock to check for an "Unlock" button. 3. Manual Code Entry
The carrier will either push an over-the-air update that auto-unlocks the phone or will email you a code. They do not provide a downloadable "tool." motorola network unlock tool link