original NAND dump is not working (falcon)

[voldemrd]

Hello again.

i have tried to glitch.. but with no succes...flashed my original dump back .. removed CPLD...started ..and it RROD after 10 sec ...fan is always making that wierd noise like speeding up .. and slowing down in short period of time.

i once managed to get my xbox working after flashing original dump ..so dump is ok .
any ideas why ?..
could it be writing errors with LPT port comunication like it does in reading mode ?do i need to try and try untill it boots normaly ?

thank you for your answers


btw when desoldering ..i was too uncarefull and i screw up points POST_OUT and CPU_BYPASS

 

[afsilver]

RRoD as in the 3lights? what about secondary code? sounds like a potential reflow/reball going on here.

 

[The504]

You might have a corrupt Original Nand.

 

[WestCoastConsoles]

Build yourself a clean NAND with a donor kv and donor NAND. Check and see if it is a corrupt NAND

Also give us the secondary error code it will help us to better identify the issue

Post pics of the ruined areas as well.

 

[Martin C]

btw when desoldering ..i was too uncarefull and i screw up points POST_OUT and CPU_BYPASS

The issue is with CPU_PLL_BYPASS. You'll need to fix the point to the R7R17 resistor above it.

There's a top via point you can use, but without being funny I would get someone else to do it.

 

[Martin C]

I know you've just PM'd me but always better to reply on here for the benefit of others.

R7R17 value is 10kOhm

 

[voldemrd]

ok thank you very much guys it is working once again