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  1. #1
    Senior Member cfwprophet's Avatar
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    Guide: How to UnCripple Your XBox 360 HDD After a Ban

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    There's been a discussion about a way to uncripple your XBox 360 harddrive AFTER you got banned.

    As you know Microsoft decided to 'remove' some HDD features (like play games from HDD, etc) when your console gets banned.

    Microsoft does this by modifying data in the secdata.bin on the NAND (that's why write-lock the NAND was a way to prevent HDD-crippling).

    But people found out the NAND has older (backup?) copies of secdata.bin stored on the NAND as well. Now the hack consists in making your Xbox 360 use an old version of the secdata.bin.

    All secdata.bin are tagged with a date stamp so you can easily find out which one is newer or older. As your console is already banned, it does not really matter if MS can detect this or not.

    Thwack wrote a good tutorial with a method to do this (below).

    This is pure HEX editing in the NAND image, no CPU-key or whatever is needed. However, for those new in dumping the Xbox 360 NAND... if you do via LTP with nandpro, make sure to dump it a few times and check to make sure your image is good.

    Before wild stories go around... this does NOT unban your console from LIVE.

    To start with, you'll need to know a few things. This is going to involve a small amount of soldering, and a little knowledge of Nandpro and Hex (and a lot of patience if you've got a 256/512mb Jasper).

    Also, and an important point: THIS WILL NOT UNBAN YOUR 360 - ALL THIS DOES IS TO ALLOW TRUSTED CONTENT ON YOUR CONSOLE. That out of the way, lets get on with the tut.

    Part 1: Cable creation, and hooking it up:

    You will need:

    1. DB25 25-way male plug + wires - or the male end from a printer cable leave the wires attached, cut off the female end.
    2. 5 X 100 ohm resistors.
    3. 1 X Switching diode.
    4. Soldering iron, flux and solder.
    5. A PC running Windows (32bit XP worked for me), and with a Parallel Printer Port.
    6. NandPro - Download here: [Register or Login to view links]
    7. Hex Workshop - Dwnload here: [Register or Login to view links]

    Now, you need to make your cable, and solder it to your 360 motherboard. YOU DO NOT NEED TO USE JTAG WIRES - THESE ARE THE ONES WITH THE 330OHM RESISTORS ATTACHED AND THEIR CONNECTIONS TO THE J2D2 AREA OF THE MOBO!

    Just hook up the wires as shown colour to colour, 360 to DB25, not forgetting the resistors where it tells you to put them, and the switching diode with it's black band facing the 360 mobo).

    Part 2: Dumping Your NAND:

    Now back to your PC. Unrar NandPro, and if you're PC's like mine, unrar it to C:Documents and SettingsAdministrator.

    Double click 'port95nt.exe', let it do it's thing, you may need to reboot. Now restart your PC, and go into the PC's bios. This differs from PC to PC, but make sure your Parallel Printer Port (Or LPT) is ON. Boot into Windows.

    Take your now wires up 360, and plug in it's power supply (DO NOT TURN THE 360 ON) and hook up its AV/VGA or which ever cable you use. Now plug the DB25 plug thats attached to your 360, and plug it in to your PC's printer port.

    Now go to the START button on your PC, and click on the 'Run' button. A 'Run' window will pop up. Type 'CMD' and click 'OK' A DOS promt window will open.

    You see it's pointing to my folder where I installed NandPro to? If yours defaults to another address, install NandPro in that folder. We are now going to dump your NAND.

    Type into the DOS prompt window: nandpro lpt: -r16 nand.bin

    and press 'enter' NandPro will now start to read the NAND of the 360. If you have a 256 or 512mb Jasper, replace the '16' in the above command line with 256 or 512. One thing to know - if you've got a 256 or 512 Jasper this will take hours just for one dump, and you're gonna need at least two dumps.

    You may get errors reading or it just won't read. You will need to first - check your LTP settings in your PC's bios - change them and re-try dumping. If you've tried all configs in the bios, try another PC. If it still doesn't work, try removing the resistors and/or switching diode and then try dumping. It will work eventually, but if not - TRY ANOTHER PC!

    Right, we've got our first NAND dump - congrats! It'll be in the folder you install NAndPro to (in my case C:Documents and SettingsAdministrator) and it's called nand.bin.

    Now dump your nand a second time using this command line in the DOS prompt window: nandpro lpt: -r16 nand2.bin

    Leave this dumping. You should now have nand2.bin in the same folder as nand.bin and verify your dumps.

    Now SAVE THEM ONTO DISC/USB STICK IN THEIR UNALTERED STATE - IF YOU EVER NEED TO RESTORE YOUR NAND BECAUSE YOU BORK IT IN THE NEXT SECTION YOU WILL NEED THESE AS THEY WERE!

    Part 3: Unlocking The Power Of Trusted Content - Or Hex Editing Your NAND:

    Now you've got your NAND.bin or whatever you called it, open it up in Hex Workshop (click on the 'open file' icon, or go to 'File - Open').



    Welcome to the world of Hex... Now go to 'Edit' in the drop down menu, and select 'Find'. A box will appear, in the first drop down, select 'Text String' tick the 'Find All Instances' box, and enter 'secdata.bin' in the 'Value' box. Click OK.

    It will scan NAND.bin for all occurances of sectdata.bin, and in the box in the bottom right corner, it will list how many of these there are. Click on the first one. You'll see it will go to the secdata hex you've clicked on.



    Now look at the hex highlighted in the lovely 'salmon' color.



    The four block number 3B 5C 93 1B - this is the date stamp of the authoring of the secdata, and it always appears after the 00 00 04 00 hex after the secdat.bin hex number.

    Go through all of the occurrances of secdata and note these date stamp hex's down under their address headings (in the pictures case its 00487E10) If your secdata starts midway through a line, you HAVE to use that address.

    Now you need to understand Hex a bit. The blocks go up in numeric and then text value, so it'll start at 00 and go through to FF, with FF being the highest value, meaning that hex 0F is a higher value than 09, and B1 is higher than A8. So in this example the value is 3B 5C 93 1B (if there was another secdata with 3B 6A 4E 93, that would be the higher value). Look at the hex values of the date stamps from all of the secdata and the highest value one is the latest bad HD corrupting hex!

    Write the address of the highest secdata block down! (In this case its 00487E10). Use this: [Register or Login to view links]

    It's a hex calculator if this one doesn't work google and find one that can to hex division, click the 'Hex' button and enter the address value (ie in this case 00487E10) and divide by 04200. Note down the number before the decimal point, which will be a three figure hex number - say 11D or 158 etc depending on your NAND.

    Now go back to NANDPRO, and with your 360 still hooked up enter: NandPro lpt:-r16 nandfile.bin 0x0158 1

    (change 158 to whatever address line you came up with in your calculation, remember the -r16 should be -r256 or -r512 if you've got a 256mb or 512mb Jasper)

    This will dump this sector of your NAND. Now with the freshly dumped NAND piece, open it up in Hex Workshop, and check that it starts with 1F FB and repeats for a bit. It should also have a single secdata.bin if you search... also the last none filled line should be 4200.



    Highlight all of the hex.



    and select 'Edit - Fill' from the drop down menu. Make sure that in the 'Fill with the following hex byte' the value is '0' and click 'OK'. Now save this file and call it 'nandzero'.

    Open up NANDPRO again, and this time, enter: NandPro lpt:-w16 nandzero.bin 0x0158 1

    Change 0158 to whatever address line you came up with in your hex division calculation (and again, the -r256 or -r512 if you've got a mighty Jasper)

    This will write the zero'd 4200 size file to address 0158 (or which ever address you came up with in your calculation). Disconnect 360 from PC (leave your NAND wires attached in case it goes wrong), boot 360 and you're away.

    Cheers to Bannzzay - also there's a tool about called FSTool - haven't teste it, but I think it works, and it's a lot less hassle - JUST MAKE SURE YOU KEEP YOUR NAND BACKUPS BEFORE USING!

    Guide: How to UnCripple Your XBox 360 HDD After a Ban

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    Attached Thumbnails<br><br> Attached Thumbnails

    HexWorkshop.jpg   First-Sec.jpg   Highlight.jpg   nandfile1.jpg   nandzero.jpg  


  2. #2
    Junior Member Starlight's Avatar
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    Nice tutorial cfwprophet.. .. and it should help out indeed, i use the same program also for editing.

  3. #3
    Contributor smarty94's Avatar
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    Question

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    Does "trusted content" include the ability to be used as a media center extender?

    Great tutorial!

 
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