Jasper Nand Problem?

[litnin]

I've go a problem with a jasper. I read the nand (all ok) created the ecc and wrote it but couldn't boot to xell. Tried to write the original nand back but it doesn't see the nand any more. This was all done with the same solder points so its not the soldering. When i turn on the console its just the center green light that comes on nothing else. From reading other posts (after searching threads) it seems that if i've corrupted my nand the console wont boot at all but i'm getting the green light.

Please help i'm ready to bin this thing!! :facepalm:

PS i've glitched/tag'd quite a few consoles b4.

 

[Martin C]

How did you verify you had a good dump prior to starting?

 

[litnin]

Sorry should have explained. I use jtag tool for all my glitch/tags. So i made 2 dumps and compared them within the jtag tool interface.

 

[garageinc]

i use jtag tool too for simplicity but you should still open your nand dump in 360 flash tool to make sure its at least a valid dump and check the cb number.

 

[litnin]

I check the cb number in degraded.

 

[garageinc]

could still be the soldering mate but you could also try restarting the pc and reseting the nand x by putting a pin through the small hole in the top to hit the button. i've had usb ports lock up and the nandx and this resolves it if it is that.

 

[litnin]

Tried that quite a few times now and i've glitched a few more in between times so i know its not my nandx.
I think the first thing that needs resolved is, is it a corrupt nand? Does the board boot at all with a corrupt nand?

 

[Martin C]

So are you booting to XeLL now?

Pics of you soldering please.

You can't corrupt the NAND, not by what you've already said.

And one final thing - change your process if you do a lot of these.

I'll compare a file full of 0000's with another file full of 0000's. I'll get no differences. Does that mean I have a good dump?

Degraded is ok I suppose, however the best way to check is to open the dump in 360 Flash Dump Tool. You can check everything in there easily, including your config (as degraded can't check this).

 

[litnin]

No. I can't even boot to xell. Just blinking green light.
I've even soldered from the bottom of the board. No good either.
I'm at work now so i can't post pics. But lets say for arguments sake that my soldering is all good, what else could stop me seeing the nand?

 

[Martin C]

Either a bad write or a bad connection.

The bad write could be down to the command used, bad ecc file or soldering.

bad connection - read as bad soldering.

You may need to do a bad flash recovery to get access to the NAND.

 

[litnin]

Flash Recovery?

---------- Post added at 13:39 ---------- Previous post was at 13:30 ----------

Oh Bad Nand flash recovery. Yeah tried that too (spent about 3 hours at it).
I assume you mean shorting the nand to gain access?