RGH No XELL with Xecuter Coolrunner but only a blank screen - Jasper 512MB and 6751 CB

[caius]

Hi all.
I have a phat Jasper with 512 MB of NAND and a 6751 RGH.
I succesfully programmed the Xecuter Coolrunner with Impact and LPT interface and installed the chip following the correct diagrams.
I built the Image_00000000.ecc first with 360 Multi Builder (version 0.2 and 0.3 ) and then with ECC Glitch generator 1.0 but when I flashed them the green LED of the Xecuter Coolrunner didn't blink at all.

So I used , instead, the ECC Glitch Generator 1.0 and flashed the generated Image_00000000.ecc and now the green LED of the Coolrunner blinks very 5 seconds but it didn't boot into XELL.I waited also for 20 minutes but nothings, green LED blinks every 5 seconds and the fan spins very quickly on a blank screen.
I used also the manual procedure with Python to generate the Image_00000000.ecc but nothing hs changed.

I double checked the solderings and there no short circuit, they are all well made.I positioned the wires like in the pictures staying away of that area of the motheboard.I l also put a 68nF film resistor on point A and GROUND but situation is always the same.

To mention that all my original NAND dumps has some bad blocks as showed in the attachment but I think there is no need to remap them manually since they are all out of the first 50 blocks.

Any advices?

Thanks in advance

 

[Mickey3177]

I would remap the bad block any how, I used Jtag tools and is very easy to do. I've been told that 360 Multi Build does it for you but not sure on that. If you have been reading around you should have noticed that the Jaspers are a pain in the butt to glitch at all or very long glitch times. Make your soldering is good and put some pics up of your wiring so we can have a look.

 

[caius]

I would remap the bad block any how, I used Jtag tools and is very easy to do. I've been told that 360 Multi Build does it for you but not sure on that. If you have been reading around you should have noticed that the Jaspers are a pain in the butt to glitch at all or very long glitch times. Make your soldering is good and put some pics up of your wiring so we can have a look.

Thanks for the advices.Ok I will remap them and post some pictures of the installation.
I tried also to desolder the wires from the Coolrunner (leaving them sodered to the motheboard) and write back the original NAND dump, the console goes normally to the dash so I presume the wires are correctly soldered to the motherboard.

 

[Mickey3177]

Removing the CR only tell you your console is ok, you could still have some bad solder points

 

[razblade77]

yep Jasper's are a huge pain in ass. I have done 2 one I got working by adding caps and the other one just will not glitch no matter what caps or anything else I did to it. so its really up to u how much u want to mess with it. u might get it to work or u might not.

 

[Dosk3n]

This may seem really stupid mate but do you have it plugged up by HDMI or AV?

I did my slim last night and used noob mode of jtag tool which default set xellous to run from AV. Well I hadnt realised and plugged up by HDMI. What happenned then was the green light kept coming on and going off for a few seconds until I thought about it. Plugged in AV instead and it was fine.

 

[caius]

This may seem really stupid mate but do you have it plugged up by HDMI or AV?

I did my slim last night and used noob mode of jtag tool which default set xellous to run from AV. Well I hadnt realised and plugged up by HDMI. What happenned then was the green light kept coming on and going off for a few seconds until I thought about it. Plugged in AV instead and it was fine.

I used the AV Scart cable (I don't have a HD tv).But I didn't use Jtag tool to make the ecc image, I used the manual procedure with Python (and also ECC Glitch generator and 360 Multi Builder but without success as I said in my first post).

 

[caius]

Finally I got it!It was only matter of using Nandpro20e instead of the 2.0b version for flashing the ecc image created with 360 Multi Builder 0.2.Now Xell reloaded boots very quickly (2-3 seconds on every boot without any caps), this Xecuter Coolrunner doesn't loose a shot!Thank you boys!

Maybe my experience can help other users who encounter similar problems in glitching their Jasper with big block.Remember this combination of softwares: Nandpro20e + 360 Multi Builder 0.2.It worked for me at least.

 

[Martin C]

Multi_Builder 0.3 apparently had a problem with 6751 ecc creation, which has been fixed in 0.4.

 

[thebomber]

true martin 6751 made me hate rgh all the way till i used multibulider and it fixed it