Ok if you have tried the jtag hack and have been unsucessfull (Xbox wont turn on at all and "Cannot detect a flash controller" in Nandpro) do not panic there is salvation. ;)
You can recover from this Hell by shorting out the nand there is two methods on how to do this and both accomplish the same thing. The first method is the one that is most recomended but is a bit more difficult to do. what you want to do is short out pins 44 and 47 by connecting them with a piece of wire (or anything conductive ex: screwdriver or pin)
METHOD 1
SHORTING OUT PINS 44-47
Here is a detailed diagram I have made showing the pin outs on the nand so you know which pins you need to connect together to short it out.
The procedure for causing the short is the same for both methods and will be reviewed below
NOW THE SECOND METHOD IS A LOT EASIER BUT IS ALSO MUCH MORE LIKELY TO CAUSE DAMAGE TO YOUR 360. USE AT OWN RISK!!!!!
This method involves getting a piece of stripped wire and laying it across all of the legs of the nand at once. Thus causing a short and forcing the nand into a recovery mode where you can than erase or rewrite it. below is another pic i have edited to show you what i did.
*Note the wire can be held in place with your index finger on one side and your middle finger on the other while doing the procedure.
PROCEDURE
This procedure works for both methods but i am going to demonstrate Method 2 because it is easier to execute and illistrate
Disconnect all cables from your console. Reconnect the video cable and get your wire in place on the nand.
Pic Below
Now while still holding the wire in place with your finger reconnect the power cable to the board
This is what everything should look like
Now remove the wire carefully not to touch anything on the board. (best method is to just let go of it and pick it up after.) check your xbox 360's power bar if the light has stayed orange than you should be fine if it turned red than the surge protect has kicked in and you need to repeat the procedure.
Now open the command prompt and go into nandpro and test reading from the nand.
ex: C:\nandpro\nandpro lpt: -r16 test.bin 1 1
this command will attempt to dump your keyvault if you get a flash config and it succeeds than your nand is able to read and write again.
* At this point i would suggest erasing the nand (ONLY DO THIS IF YOU HAVE PROPER BACKUPS OF YOUR NAND)
To erase the nand go in to the nandpro directory ex: C:\Nandpro\ and type type: nandpro lpt: -e16 0 400
This will completly erase the nand than just flash your original back or the proper version of XBR (If you flash your original back you must remove the jtag wires or the console will not boot)
Originally posted by garyfez: Mine boots with the original nand and Jtag in place also boots with xbr so i know its working
Nice one, err do you have a question?
Just curious why everywhere it says you can't boot original nand with jtag in place but I don't have a problem.
Great tutorial though I hope I never have to use it lol.
Hi Guys,
I have a falcon board that I was fashing etc but was having issues getting xbr to boot so was attempting various ways to flash - first the xbr flash then keyvault etc, anyway one of the flashes had an issue half way through and since then nandpro can't find the flash controller but when I boot the xbox I get a green light in the centre of the front of the xbox but nothing on the screen, I have tried the method about with no luck - first method does nothing and the second method causes the red light on the power supply to come on everytime no matter what I do, the lpt joints are fine as are the resistors(checked with a multimetor) im just wondering if my nand is dead? and how I can check this?
Thanks
Reeso
Hey,
Ive recently attempted to jtag a xenon board i had. I managed to get two identical dumps, I then injected the KV and config files into an XBR image, but when i flashed the image back, i had a problem half way through and it started giving errors. When i tried to reflash it it comes up cannot detect flash controller. the box wont even turn on.
Ive tried both the methods of shorting pins many times with no luck :( anyone have any ideas? Would it be possible to replace the nand chip from another xbox?
Thanks.
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