RGH DemoN wont read nand anymore

[jery911]

alright so, i have the corona demon qsb installed and a slim demon installed on my xbox, everything worked fine until i updated to the latest dash, i updated the stock nand thur xbox live everything went fine, i then checked the rgh nand and it booted up fine also, then went back to stock and and played black ops 2 online, and the next morning i was trying to boot up the rgh nand and nothing happens, it just beeps it wont turn on, only the stock nand, then i tryed reading the nand thur the demon and i get this error "manufacturer for code FF not found" im only able to read the demon nand, i then dumped the nand with my jr programmer and flash my stock nand to the demon and it boots up fine, so idk what the problem, i check my soldering i even refitted the ribbon cables like 5 times and still nothing,

any help is appreciated thanks

 

[Martin C]

Have you already checked for neighbouring shorts between the adjacent NAND points and ensured continuity is still there from the QSB to the pins on the NAND?

 

[jery911]

yes just tryed that and they are all good, still the same

 

[Martin C]

So where are you with this? List the permutations you've tried.

 

[jery911]

alright, iv

checked my soldering
checked for shorts
readjusted both ribbon cables
different corona timing files
dump the nand with my jr programmer and wrote it to the demon, and the console boots up with stock nand on the demon but not a glitch image

and iv retouched all my point with the soldering iron

and still nothing

 

[Martin C]

So you are still unable to read/write to either the DemoN NAND or the stock NAND?

The issue with the RGH image is that J-Runner doesn't have Demon-enabled timings for Coronas. Drop lonewolf a PM and he can sort this out for you.

 

[jery911]

no, im able to read and write to the demon, but im not able to read/write to the xbox 360 nand

and yes, i contacted him before all this, and when i was about to program the coolrunner with his timing files thats when i found out that it stop working, i use to switch the switch on the coolrunner from NOR to PRG in order to switch nands

 

[Martin C]

Usually if this is the case, you would be having issues booting the console on either stock or DemoN. Since this is working, I don't think the issue is with the DemoN itself.

I would check all resistors which lead off the NAND points to see if any of them are not reading back as they should. I would also lose some of the solder on each of those points as IMHO there's too much.

 

[jery911]

yea thats the weird part that when i put the stock nand on the demon it boots up, but when i make a glitch image it doesnt boot or anything,

What are the resistors suppose to read? i will try when i get home.

 

[Martin C]

Set the meter at 10k - I don't think anything should be higher than this. If you get any resistors out of range it might indicate a problem.

If you can boot the stock NAND from the DemoN then it's working fine.

 

[jery911]

alright just read the resistors, and they all seem fine

yes true, but idk whats the problem, i can not read the nand at all i keep getting the same error "manufacturer for code FF not found" whats exactly does that mean?, can the coolrunner cause any problem?