JTAG NandX stopped working

[colzy2008]

Hi everybody, right where do i start....

I have had my nandx for just over a month and it worked flawless every time, but today i had a falcon board which gave me random bad blocks, i did not think much of it as i checked my wires etc and dumped again which i got 2 perfect dumps after.

But when i went to write xellous it gave me bad block errors again so i waited for it to finish then retry but all i get was "cannot detect flash controller, cannot continue" which i thought was strange, so i checked my wires again to be sure and i am 100% happy with as i am no stranger to jtags i know whats involved with soldering etc and i have tagged well over 100 xbox's,
I still could not get it to detect so i tried on another machine with same results, so i thought that maybe i got one of those dodgy boards that the spi stops working on so i tried 3 other 360's that i know works and it could not detect flash on those iether.

So i asked a friend if i could lend his nandx and it worked 1st time with no issues, so i tried my one again and it could not detect flash so im thinking that the arm controller has gone caput so is there anything i can do to troubleshoot this nandx or is it dead?

Thanks in advance
colzy

 

[rdubbs007]

Test it on another xbox to be 100% sure. Just dump any xbox nand and see.

 

[manwithoutname]

a) did you reset the device?

b) if device is faulty contact your original point of sale.

 

[colzy2008]

yes i did test it on 3 other xbox's which i know that dump ok as they are allready tagged, plus i tested on a scrap one i have here without a gpu and cpu on but i have dumped the nand from off this board before just to get the kv form off it, it did could not detect flash controller on all of those.

and "manwithoutname" i did reset the nandx to no avail.

looks like i will be giving ck3 shop a call and sort out a replacement.

the initial post was just incase anybody else had a simular problem and was wondering if they had a remody for it, i.e cold joint on the nandx pcb etc.

but thanks all for your replys so far