How To Know If My Cell Phone Is Unlocked on this page. If accompanying the device from Windows Hi to generate HMAC keys (authentication and buttons on the device) is responsible, the accompanying use of Windows Hi, please also follow the device to generate them before making any of the two conversations. Note that there is a third option for unlocking interop, which uses a deeper unlocking level. However, at this stage, it is not available for all Windows Phone devices types. If you provide Device Portal with an app for testing on a phone, you need device recognition on the phone, but do not look at your PC development. Users can install apps based on their specific regions and make them more restrictive is the fact that Windows only limits the installation and use of Windows Store apps. I was going to buy a contract with T-Mobile, but none of the devices have (Radar and Lumia 7) worth it to force a two-year contract extension, which is disappointing. Yes, a hard (factory) reset reverses any changes made by Interop-Unlock or other apps (including Interop-Unlock) and removes all apps. If you have developed access to your phone in the future, run it. Just start the Windows Phone Developer registry and click the Logout button. Then run the Unlock tool and a window will open. 2. Note the phone icon on the window that indicates that the phone is not connected to the PC. With Bluetooth, care must be taken that the battery on the PC page is not affected or other Bluetooth activities are impaired for the Windows Hi Companion device. Note that you also downloaded the Windows Phone SDK Utility to Windows Phone before you unlock the Windows devices, as described below.