If your have a wrecked Xbox 360 Drive. Heres how to replace the drive,but I cannot write a noob friendly tutorials like my other posts due to some reasons.
1) Extract the key from your old Xbox 360 DVD Drive.
2) Load your Dummy.bin in the buffer.
3) Select the target firmware.
4) Click on spoof to target source.
5) Flash your New Xbox 360 DVD Drive with your spoofed firmware.