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Xbox360 Forums => Xbox 360 Hacking Forums => General Technical Hacking Discussion => Topic started by: thwack on January 21, 2010, 01:14:00 PM

Title: Jtag Problem?
Post by: thwack on January 21, 2010, 01:14:00 PM
Try adding config. If that doesn't work, inject kv and config into a fresh XBR, dump your kv'd and config'd XBR and compare 'em.

Also, did you check your NAND dumps for bad blocks? If not, do so, then if there's bad blocks, remap them either manually or use BadBlockRemapper, then flash a fresh XBR to the NAND, then add your new kv.
Title: Jtag Problem?
Post by: oisuxx on January 21, 2010, 05:14:00 PM
so, did that, and same thing. red/green lights. maybe xbr isnt the right choice? like i said, Xell booted fine.
Title: Jtag Problem?
Post by: craz3d on January 21, 2010, 05:54:00 PM
Just because you can't get it to work doesn't mean there's something wrong with it.  Also, there really isn't even another choice anyway.  This isn't an idiot-proof process (very unfortunately), and many people, myself included, had issues getting it installed.  You just have to stick with it.

You need to run your dumps through a program called degraded to see if you have bad blocks.  Bad Blocks refer to physically defective sectors on the NAND chip that cannot be properly read or written to by either the host device or external reader.

To check for bad blocks, you need to run your NAND dump through a tool called degraded.  If you have bad blocks, get the program called "Bad Block Mover" which will automatically remap bad blocks in your XBR image which you then flash to your console.  If your NAND chip is larger than 16MB I believe you must find a tutorial for doing bad block remapping manually.

In response to thwack, I personally was only able to get XBR working on my console by not flashing config sectors.  I have also seen this echoed through the forum quite often.  If it doesn't work with config, try without; and vice versa.  To the OP, this only applies if you have an NTSC console.  If you don't then you have to flash the config sectors, otherwise you might have strange issues.
Title: Jtag Problem?
Post by: thwack on January 22, 2010, 06:04:00 AM
QUOTE(craz3d @ Jan 22 2010, 12:54 AM) View Post


In response to thwack, I personally was only able to get XBR working on my console by not flashing config sectors.  I have also seen this echoed through the forum quite often.  If it doesn't work with config, try without; and vice versa.  To the OP, this only applies if you have an NTSC console.  If you don't then you have to flash the config sectors, otherwise you might have strange issues.


True - I've had a few that don't like config. Put it all in thetroubleshooting faq in me sig below. Odd though, as two I've done that didn't like the config, but both were PAL.
Title: Jtag Problem?
Post by: oisuxx on January 22, 2010, 06:41:00 AM
well when i tried to run it through degraded, it said "not valid" or something to that effect. then i read i needed to change the 7 to a 5 with a hex editor. yea, so i did that, and now degraded starts to load the bin, then just crashes.