Tuto Just Follow the instructions
1. Important, unlock the protection of the HTC Juno (T-mobile Shadow) by running "SDA_ApplicationUnlock.exe" on your phone if not done so already!!!
2. Copy " bkondisk.exe" onto your device or your SD card.
3. Run "bkondisk.exe"
4. Some image files will be created on your "My Device" or phone root folder around 50Mb-70Mb, this will take a while, around 3-5 minutes.
5. Look for and copy "BK_02_0005.img" onto your PC.
6. Open "HxD.exe" a hex Editor Program that is included in the zip file.
7. Open the file "BK_02_0005.img" with "HxD" program and scroll down to the lines "000400F0" and "00040100" (like in the picture "Capturer.JPG" that is included in the zip file).
8. The eight-character code is your Unlock code, all eight numbers will be in line "000400F0" or in line "00040100" or some in either of the two, but it is eight numbers long.
9. Turn off your phone and insert other carrier's sim card and turn phone back on. After loading a message will appear and state that the network is locked and to input the unlock code.
10. Input the eight digit unlock code you got and enjoy your Sim unlocked Shadow.
If you can't find the file "BK_02_0005.img" in your documents folder, make sure to unhide hidden files to see them.