This is a WIP, there may be some errors


6th April edited YouTube video
9th May 2017 v60b4, new YouTube Video and updated instructions
Set up your PC with the Xbox hard disk as Master and the DVD drive as Slave.
Set the BIOS to boot from DVD/CD first.
When the program loads, be patient it takes a little while

Type "HDAT2" at the command prompt.
Select the hard disk by using the cursor keys and pressing enter.
Scroll down to "Security" press enter.
Scroll down to "Unlock device" press enter.
Then press "I" to change from User to Master.
Pressing "K" will scroll through a list of built in passwords, if you're lucky it'll be one in the list.
Xboxes are usually "XBOXSCENE" or "TEAMASSEMBLY" which are near the end of the built in password list.
Press "S" to set and then "Y" to confirm.
NOTE: You will only get 5 attempts, and then you will have to re-boot, and start again

You can also enter a password manually by pressing "P"
Passwords can be entered in User mode, but you don't get the "K" option for the built in password list.
If you have "zeroed" your hard drive password then 30 HEX is DECIMAL 0.
Hopefully the video will show what I mean

https://youtu.be/ZnvqxgTJsfo
HDAT2 also has other useful hard drive tools to repair bad sectors, erase etc...
Have a look at some of the other YouTube videos by other users
