All Bad Blocks

dro162

dro162

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Jul 30, 2012
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TX Product(s) used: Demon PHAT (with BB add-on), Coolrunner Lite, QSB v3
Console Type: Jasper
NAND size: 512
Dashboard version: 2.0.14719
CB version: 6753

Description of problem:

The original problem was getting a TDO mismatch error when trying to flash the CR. The Xbox also will not boot with the DemoN NAND selected. Troubleshooting this problem with Martin C, I found another probably related.

I have a 512MB retail dump, and have written it to the DemoN. It writes the 16MB but when I read it back it gives me 32 bad blocks and says too many bad blocks.

If I can read the retail NAND twice and they match (no bad blocks) and I can write to the DemoN with no errors, then what could be at fault?





JR Log: View attachment Log.txt

Install: https://www.dropbox.com/sh/50sjmx1nzfqk66i/lP3mg2zoUj

Extra Info:


CR Jumpers - Phat (Jasper)

LK1 - Short (Disable Crystal)
LK2 - Short (Disable 10 Ohm on CPU_RST)
LK3 - OPEN for RGH2
LK4 - All Open (Slim Settings)

S2 - 1 + 5 ON (disabled)
S4 - 4 ON

Demon PHAT- has 1.04 firmware, BB add-on. Switch set to XBOX.

J-Runner 0.2 (288) - Dumps NAND and they match. Writes to DemoN. Switch set to NOR and PHAT. Using new XSVF for demon: RGH2_DEMON_CR_EN_D.xsvf


CR is lit up red and green in standby. DemoN is lit up blue. Checked the ribbons.

Original thread in CR troubleshooting: http://team-xecuter.com/forums/showthread.php/134273-Need-Help
 
Martin C

Martin C

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You cannot write a big block NAND to your DemoN. That won't work. Write the ECC to the DemoN and then use that to boot XeLL. Once you have the CPU key, you can build a 16MB RGH image and write that to the DemoN.
 
dro162

dro162

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Jul 30, 2012
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So when you suggest that I write the retail NAND to the DemoN to make sure it boots you mean to write the ecc with retail programming? I did that, the xbox now boots with fan at the max, but I just get a black screen.

I also created the ecc with glitch but of course that won't work without the CR being flashed.



Does the fact that the xbox turns on with retail ecc programmed mean my TDO mismatch problem lies with the CR?
 
BL4K3Y

BL4K3Y

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Jul 7, 2010
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Do a continuity test on the CR ribbon cable - measure from the CR to the DemoN and make sure you get a "beep" for each pin.

Is your CR set to "NOR"?
 
Last edited:
Martin C

Martin C

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I didn't read your previous thread properly, so gave you bad information - apologies. You can't write a BB NAND to a SB NAND by itself. So the fact the console powers on from the ECC written is good news. The TDO mismatch might be due to the ribbon cable from the DemoN to the CR. It's very easy to miss the cable socket and put it under the connector itself. Get a meter and check continuity between the socket pins on the CR and DemoN.

EDIT: BL4K3Y beat me to it :)
 
dro162

dro162

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Jul 30, 2012
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CR to DemoN is continuous on all 5 pins. CR is set to NOR.

Does it mean anything that both red and green lights are in when I first start, but after failing to flash the green light goes out? Also when the green light is out, the console will not power on in stock or DemoN NAND.

Thanks for all your help guys.
 
Martin C

Martin C

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Both lights on means the chip has been erased. That's part of the flashing process.

I'd keep the cable away from any interference and try again.
 
dro162

dro162

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Jul 30, 2012
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I meant when I first plug the xbox in, both the red and green light are on. They stay on until I flash the CR, then the green goes off.
 
BL4K3Y

BL4K3Y

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Jul 7, 2010
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Colne, Lancashire (UK)
dro162 said:
I meant when I first plug the xbox in, both the red and green light are on. They stay on until I flash the CR, then the green goes off.
Click to expand...
As Martin said, both LEDs will remain lit if the chip is blank (it is shipped blank from the factory).

Once the CR is programmed, the green LED will go out.
 
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