Ok, so obviously when you homebrew your 360, you are supposed to take multiple dumps and make sure you at least get two identical before continuing. Well, if you're like me, you make a lot of mistakes at 4 AM lol. So, if you forgot to do that and have only a corrupted image, but got your CPU key from Xell, here is how you can still build your freeboot image (and XBR for that matter, then from XBR your original if you chose).

Things you'll need:

    * CPU key (and preferably your DVD key, though that can be modified later)
    * A donor nand for your xbox. Here's my folder full of em, though they're available on xbins too: Megaupload Folder (http://www.megaupload.com/?f=OJBEX7YC)
    * Keyvault modder v1h: download here (http://www.megaupload.com/?d=06227J7A)
    * A clean keyvault (you can get one from almost any resigner like le fluffie, but here's one anyways): download here (http://www.megaupload.com/?d=IYWIH2H4)
    * 360 Flash tool v.97: download here (http://www.megaupload.com/?d=5I5I20CV)
    * fbbuild .20 with files: download here (http://www.megaupload.com/?d=50E6YR0N)
    * NandPro 20e only if you get christmas lights. Read bottom of post.: download here (http://www.megaupload.com/?d=DB3MTLIE)


Step one: Modifying the keyvault

    * Ok, so an important thing to note is that the KV I listed for download is DECRYPTED.
    * Now, open Keyvault Modder. Click on 'Open a KV DECRYPTED'. Once that happens, it'll populate all the information.
    * Now, where it says CPU key, paste your CPU key.
    * Where it gives drive info, spoof it to the correct drive and enter your drive key (optional, can be modified at a later date).
    * Click 'Encrypt the KV' or whatever it says. It'll prompt you to save. Save it, for now, as kvmod.bin and yes, YOU NEED TO ADD THE .BIN, the modder doesn't do that.
    * Optional: open your newly encrypted kvmod.bin with the 'Open encrypted kv' option. Where it says "infos," if it says "christmas lights," there may be a problem, or there may not be. For cautions sake, I would re-do the process.


Step two: Preparing your freeboot image. This is where the donor nand that you downloaded earlier comes into play.

    * Open the donor nand with Flash Tool 360. It may say in the right hand column "bad kv" or something. Don't worry about that.
    * At the bottom, click extract. Now, extract the SMC and the 'config blocks.'
    * When you extract the SMC you'll get SMC-enc.bin and SMC_dec.bin. Rename SMC_dec.bin to SMC.bin and throw SMC_enc.bin away to avoid confusion.
    * Inside of your fbbuild folder, there is a folder called 'mydata.' Copy SMC.bin there.
    * When you extract your config blocks, it should extract as 'config.bin.' Simply copy that to the 'mydata' folder as well.
    * Now, of course, copy your kvmod.bin into the 'mydata' folder as well, then rename it to kv.bin
    * Run fbbuild as you normally would. REMEMBER TO ADD "-f 12625" TO THE END OF YOUR COMMAND LINE!!
    * It should run no problem
    * Flash like normal, via LPT, or via xellous, whichever you prefer.



That should work. If you do get christmas lights, make sure you performed the kv process correctly, perhaps you opened it as encrypted instead of decrypted, for instance. Then, re-flash your kv.bin via LPT/USB whatever (you may be able to do that via xellous as well, I don't remember)

If you still are not having any luck, then inject your kv.bin into that xbr donor image like this:

    * Download nandpro 20e. Extract it and run the exe with the red icon. Don't restart, you don't have to.
    * Copy your kv.bin and the xbr donor image into the folder.
    * Assuming your xbr donor is named "xbr.bin" run the following command (also assuming you don't have a big block console. If you do, read the README in nandpro and modify the -w16 operand as needed):
    * nandpro xbr.bin: -w16 kv.bin 1 1
    * Flash that. That should work. Now, use that xbr image to create a freeboot image.