Nands never compare

showstopper

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Nov 30, 2011
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OK so I am trying to flash my nand (Jasper 16MB using wire install on nand-x) and they all dump with "Error 250 @ block 19". The problem is that they never compare without differences. I have dumped it lots and they all have the block 19 but I never get the "No differences found" message. My multimeter is broke so I have ordered another but I just want to see what people's thoughts are. Reading around it seems to suggest soldering problem.
 

hodgie

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Apr 8, 2011
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Southern, VT (usa)
that is normal. as long as its bad in all your dumps
you should read up on Martins giude for remapping bad blocks in the first 50.

---------- Post added at 06:11 ---------- Previous post was at 06:11 ----------

http://www.team-xecuter.com/forums/showthread.php?t=76014

are you using cmd prompt? meaning try comparing them maunually in cmd promt
 
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Martin C

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Jan 10, 2004
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Make sure first off that the differences are nothing to do with the bad block.

If you have three dumps (nand1.bin, nand2.bin and nand3.bin),

nandpro nand1.bin: -e16 19 1
nandpro nand2.bin: -e16 19 1
nandpro nand3.bin: -e16 19 1

Now compare them and see what happens.
 
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showstopper

Noob Account
Nov 30, 2011
32
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Thanks guys i will check this out.

I have seen Martin's guide on errors in the first 50 blocks but i was using F1b3rs RGH guide and it seems to suggest that your nands should compare before you try and remap the bad blocks?
 

showstopper

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Nov 30, 2011
32
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Follow my suggestion above and report back.
Thanks Martin.

So I will dump the nand 3 times. Then run the script you have posted above. Then as long as it says no differences found do i still need to follow your guide on errors in the first 50 blocks?

EDIT - If i still have errors after running your script would you think it was a faulty solder?
 

showstopper

Noob Account
Nov 30, 2011
32
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One step at a time. I have a noobie roadmap sticky for a reason. Do nothing else yet.

You should already have dumps????
LOL just want to get it sorted in my head so I can get on with it tonight.

I have dumps but I was deleting them as i kept resoldering the wires to try and get the dumps to compare. They are all in the recycle bin so i can retrieve them if needed.

Yeah i read your roadmap too but i cant see where it tells you to continue if your nands dont compare. All the guides (i have seen) say to stop until your nands compare correctly.
 

Martin C

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It doesn't include it as no part of the roadmap involves you writing to the NAND.

I should probably add it in there TBH.

comparing NANDs via fc is ok but bad blocks can sometimes be bad data. I would try the above first (go with two dumps for now) and if there are still differences, you have a read/write issue which is probably soldering.
 

showstopper

Noob Account
Nov 30, 2011
32
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OK so i ran the script you posted Martin and then compared the nands (i had 4) with no differences. I open the nanddump with 360 flash tool and i didnt even get the bad blocks tab so i assume all i OK.

So i created my glitch image and flashed it to the nand.
Is this error a problem though:



Do i need to worry about the error 202?
I programmed the coolrunner and then installed it but when i power the xbox up i have the solid red light on the coolrunner and the green light flashes ever 5-7 seconds but the xbox power light just keeps flashing green.

Any ideas please guys?
 
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brett1

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Apr 23, 2011
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kernow, uk
2. Write the ecc file to your NAND as per normal. You'll get an error writing to one of the blocks. Don't worry about it for now.
:facepalm::facepalm::facepalm::rolleyes2::rolleyes2:
 

showstopper

Noob Account
Nov 30, 2011
32
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Seeing as you're reading stickys, see that one in my sig called 'Remapping bad blocks in ECC area'? Yeah, that one.
OK so should I use the NAND that I ran that script on or the original dump before the script? So before the script they werent comparing. After the script they were.

Just to confirm I would then run this:

Nandpro nandecc.bin: -r16 bb1.bin 19 1
 
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Martin C

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OK so should I use the NAND that I ran that script on or the original dump before the script? So before the script they werent comparing. After the script they were.

Just to confirm I would then run this:

Nandpro nandecc.bin: -r16 bb1.bin 19 1
There's nothing to 'confirm'.

Follow my sticky if you have bad blocks in the ECC area.
 
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