I found this somewhere - hope it helps:
How to Insert a Disc Encryption Key
Into a Hitachi-LG GDR-Drive in an Xbox 360
Tutorial by [GaZ]
Introduction
After an unsuccessful attempt to mod my first Xbox 360, I was left with an Xbox
360 with a bricked Hitachi drive. Unfortunately I was not able to return the
console, as I had misplaced the RF shielding from the top section of the case
(Doh!). Luckily I was able to source a new Hitachi (for free cheers Griff!!), and I
set about trying to replace the dead drive with the new one.
After a long process of researching and learning and much head scratching, I
was able to complete the switch, without the help of an easy tutorial, so I decided
to help my fellow modders and explain the process in a simple tutorial.
The process of replacing these drives is a bit more complicated than doing the
same with a Samsung. This is because with a Samsung, you are able to flash the
entire FW image onto the drive in one go, so once you have obtained your 360s
disc encryption key, you simply insert it into a stock image of the FW and flash it
to the drive.
The Hitachi FW image contains read routines that are used in the read/write
process, so if you attempt to flash an entire FW image to the drive, you flash over
the routines that are used, and this causes the flash to stop, and the FW chip
becomes useless, i.e. a bricked drive.
In order to replace the drive it is essential that you have the 360s disc encryption
key, without it no drive can be made to work in your console. If you have killed
the drive without obtaining this key the only solution is to de-solder the FW chip
on the drives motherboard and read it in an external programmer. There are
some skillful people over on xboxhacker.net that can do this for a fee.
This tut covers the insertion of the key into a Hitachi drive. This key can come
from any other drive, Samsung or Hitachi, for the purposes of this tutorial, my
orig.bin came from a Hitachi.
Tools Required
Memdump_win.exe by Seventhson (for dumping images of FW)
XXFlash (where XX is the revision number of your drive) (for flashing FW to
drive)
360FirmwareToolbox by Maximus (to get keys from FW)
Orig.bin (dump of original FW)
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Step1 Obtaining the Disc Encryption Key from FW of drive to be replaced
Open 360FirmwareToolbox, and you will see the following screen:
Next hit the button on the right and navigate to where you have the orig.bin
saved and load it
You will see this:
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Here the disc encryption key will be shown in the box. Copy and paste this into a
text file, and copy it several times. KEEP IT SAFE!!!
Step 2 Obtaining a Dump of the Hitachi drives FW
The idea here is to dump the FW of the new drive, so that the key can be
patched into it. It is always better to flash a drive with its original FW, rather than
another drives FW, especially if the two drives are different model revisions (46,
47, 59 etc), and even in my opinion better than using a downloaded stock image
of the drives FW. No other FW will match the drives FW better than its own.
Once the drive has been put into modeb, connect it to the PC via SATA. The PC
will assign it a letter. For the tutorial I will assume the letter is E:\
PLEASE ENSURE YOU USE THE CORRECT LETTER!!
Personally, I keep a directory in my C drive for flashing Hitachi drives, C:\360\
as I find it is easier to use in command prompts.
Put the files flashsec47_win.exe (or variant for drive model revision), and
memdump_win.exe into this directory, run a command prompt and use the
command
cd c:\360 to change to that directory.
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Next type the following command:
memdump_win e 12200 8 8000 orignew.bin
This will save a file in the directory C:\360 named orignew.bin. This is the dump
of the new drives FW.
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Step 3 Inserting the disc encryption key into the new FW
Once we have the new FW image, open 360FirmwareToolbox again and
navigate to orignew.bin and open it. You will see the following screen:
Here you can now insert the original drives disc encryption key by copy and
pasting it into the box, and then press the generate encrypted file button above.
The FW on the drive is encrypted, so therefore you need to encrypt any image
before you flash, or you will inject an incorrect key into the drive and it will not
work correctly.
Once completed, you will receive a message that a file named orignew-e.bin has
been created. This is the encrypted FW image that we need for the final flash:
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Step 4 Flashing the new drive with the correct FW
Once we have obtained the encrypted FW image with the correct key inserted,
we will then use it to inject the key into the ROM chip in the drive.
Open a command prompt and change to the dir as in step 2.
Then type the following command
47flash e orignew-e.bin 90004000 1000
This injects the key only into the part of the Rom chip where the key is located.
Once completed, you will get a message saying done at which point you are
indeed done. Remove the DVD drive and place it into your Xbox 360, power it up
and enjoy the fact that you have just resurrected a dead console.
With thanks to [Ton3] and giglife on #fw for the info, as well as Seventhson,
Loser, C4eva and all the other haxors involved in the 360 modding scene.
10/6/2006 6 v1.1
Author
Topic: Xbox 360 Dvd Driver Grd-3120l, Replacement (Read 80 times)