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Author Topic: Jtag Help - One Red Ring  (Read 63 times)

Garyfez

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Jtag Help - One Red Ring
« on: June 14, 2010, 06:01:00 AM »

QUOTE(mac456 @ Jun 14 2010, 09:15 AM) View Post

Hi Guys,

So last night i had almost finished my jtag,

I read two identical dumps of my nand and flashed it back with a injected xbr.

on boot up i now get one red ring, it hasnt worked once. Before i flashed it it was working fine.

Am I right to think it is a bad flash? maybe i didnt inject the 1bl key correctly? (i was able to read the cb version ok?)

Am i meant to run anything with degraded 1.1b once i have looked at my version like "build downgrader image" or "build v8888 image"???

i just left it up and then worked on the xbr nand?
thanks


I had the same problem resoldered all points and worked fine after that
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thwack

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Jtag Help - One Red Ring
« Reply #1 on: June 14, 2010, 06:07:00 AM »

1bl key and the downgrading in Degraded isn't your problem (the downgrading is left over from earlier exploitation of 360's), 1bl key is needed to view your dumps in Degraded.

If you've got 1rlod try the following:

1. Check your wiring again. Then check it again.

2. Flash XBR (although I'd recommend FreeBoot nowadays) without your kv and config injected.

3. Flash kv and config over to NAND.

4. Leave 360 unplugged for a couple of minutes, now see if it boots.

 

Did Degraded say you had any bad blocks?

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kanifee

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Jtag Help - One Red Ring
« Reply #2 on: June 14, 2010, 07:26:00 AM »

I had the exact same problem last night, spent all day yesterday setting it up and dumping kv files nands and configs to finally flash freeboot to my nand to have it red light on me with 1rrod.
i had used nandpro and ibuild to dump and build my freeboot .bin file. after spending al lnight trying to resolder my jtag points and reflashing the original nand back with success i got up this morning and moved my jtag points to the alternate underside points and used the latest build of freeboot toolbox to build my freeboot file, i flashed it onto the box and presto it worked a charm.

a note i did shorten my lpt cable from 12" to around 5" to decrease the signal path as well silly question but have you tryed booting xell? i had mine booting xell not sure if that possible with bad jtag wiring, someone else may be able to clarify on that but that made me believe my issues were bad writes to the nand or bad freeboot builds, toolbox took care of that for me so im guessing i guessed right.
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mac456

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Jtag Help - One Red Ring
« Reply #3 on: June 14, 2010, 07:31:00 AM »

i havnt tried xell yet, but I will tonight when i get back home.

which software do i need to make a freeboot firmware? is it just freeboot toolbox ? which version?

i already have my original dumps and the kv files

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thwack

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Jtag Help - One Red Ring
« Reply #4 on: June 14, 2010, 07:45:00 AM »

Yeah - you should be a lot better off with FreeBoot - use the ToolBox maker (latest version on their site) for ease - you'll need to use the hacked smc's though - they're available over at the freeboot channel on #efnet.

There's a readme with Toolbox, so you'll know what else you need. If you get christmas lights after flashing, it's the smc. Make sure you use a hacked one.

Failing all that, you got the commands right for XBR though - basically the order to do this is:

extract kv and config from orig nand:

nandpro orignand.bin: -r16 kv.bin 1 1

nandpro orignand.bin: -r16 config.bin 3de 2

then flash XBR over:

nandpro lpt: -w16 xbr.bin

then kv and config:

nandpro lpt: -w16 kv.bin 1 1

nandpro lpt: -w16 config.bin 3de 2

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mac456

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Jtag Help - One Red Ring
« Reply #5 on: June 14, 2010, 04:27:00 PM »

right jtag done  biggrin.gif  just booted into hacked dash!


thanks guys well chuffed.


what i did was;

I first attempted to flash xbr.bin to nand without injecting anything, everything seemed ok up intil block 200 and i was getting errors.

so i let it finish. (i didnt bother turning it on as i knew it wasnt going to work)


i then sent the erase command to the nand and then flashed xbr.bin with the injected files back to the nand and it worked perfectly :-)

cheers
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