JTAG Jasper NAND wrongly read and ecc written

[bobby8850]

Hi,

Big mistake :facepalm:
Have a jasper (512) using jtag tool click 16meg to read and ecc write.

Later I found out is wrongly read. So I flash back the 16meg NAND.bin

Xbox no boot...... How do I save my jasper?
Do I have to read the full 512 to solve it?

Any software to repair the NAND ?

Regards,
Bobby

 

[abyss]

as far as i know you're screwed because you don't have a full nand read and you deleted the original by overwriting it.
maybe some tool can fix this but i think not

 

[srt4fun]

You used the -w16 command when you wrote it back, right? Did you get RROD? Was CR connected? If so, was the red light on when trying to boot to original nand?

Could try this:
-Do not delete your 16mb read. Save it in a safe place.
-Do another read with "nandpro usb: -r64 64mb-nand.bin", save in safe place. It's your backup if things go horribly awry, haha.
-Make a copy of the 64mb one(rename the copy to 64mb-nand-copy.bin), Then do this: "nandpro 64mb-nand-copy.bin: -w16 16mb-nand.bin"
-Create your .ecc file from the '64mb-nand-copy' file.
-Flash and pray

 

[bobby8850]

You used the -w16 command when you wrote it back, right? Did you get RROD? Was CR connected? If so, was the red light on when trying to boot to original nand?

Could try this:
-Do not delete your 16mb read. Save it in a safe place.
-Do another read with "nandpro usb: -r64 64mb-nand.bin", save in safe place. It's your backup if things go horribly awry, haha.
-Make a copy of the 64mb one(rename the copy to 64mb-nand-copy.bin), Then do this: "nandpro 64mb-nand-copy.bin: -w16 16mb-nand.bin"
-Create your .ecc file from the '64mb-nand-copy' file.
-Flash and pray

Have tried your way and xbox still no boot
Thanks

 

[Martin C]

Do you still have the untouched 16MB NAND you read?

 

[bobby8850]

Do you still have the untouched 16MB NAND you read?

Yes, i have the 16meg untouch nand with me

 

[CarolinaGamer]

You should be able to write that 16mb NAND into the 64mb NAND when you read it, make sure to do a couple and compare them, and the 16mb has your KV at least so you should be able to build your ggbuild files no problem.

CG

 

[keil423]

When you wrote back you 16mb nand did you have the coolrunner installed and all hooked up. If so your xbox will not boot on stock nand with the coolrunner installed.

Did you flash back the Orig 16MB nand before you dumped the 64MB nand?

 

[Martin C]

Yes, i have the 16meg untouch nand with me

All you should have needed to have done to return to stock was this:

nandpro usb: -w16 nand.bin 0 50.

What does 'xbox no boot' mean??? Does it power on?