U have to extract your key from your orignal drive and replace it in your new one...Just be sure not to lose your key or u r screwed...Goolgle extracting key from xbox 360 dvd drive to find out more...
1. Extract firmware from old broken drive.
2. Extract firmware from new drive
3. Open old drives firmware as source in Junglflasher
4. Open new drives firmware as target in Jungleflasher
5. Click spoof source to target. ( If you are replacing with a different model it will automatically spoof the drive response for you.)
6. Click save to harddrive
7. Flash newly created firmware to the new drive.