Cant read out NAND

[yamaharacer]

Hello,
I have read out 2mb of my jasper 256mb xbox NAND. After that I flashed Xell on the NAND and started Gentoo for read out the rest. But everytime I type the command: ./a.out backupnand.bin I get an error: unknown flash config 008a3020. What can I do?

[n00bpwner360]

Assuming that 008a3020 is the correct flash config for Jasper 256MB NAND chips, proceed. If it ISN'T the same flash config you get when you do nandpro dumping and writing, don't continue. (Someone correct me if I'm wrong.)

Before compiling lflash (gcc lflash.c) make these changes

Code:

if (sfcx_readreg(0) != 0x01198010)
{
printf(" * unknown flash config %08x\n", sfcx_readreg(0));
return 1;
}

changes to

Code:

                     
if (sfcx_readreg(0) != [b]0x008a3020[/b])
{
printf(" * unknown flash config %08x\n", sfcx_readreg(0));
return 1;
}

[duggyuk]

Assuming that 008a3020 is the correct flash config for Jasper 256MB NAND chips, proceed. If it ISN'T the same flash config you get when you do nandpro dumping and writing, don't continue. (Someone correct me if I'm wrong.)

Before compiling lflash (gcc lflash.c) make these changes

Code:

if (sfcx_readreg(0) != 0x01198010)
{
printf(" * unknown flash config %08x\n", sfcx_readreg(0));
return 1;
}

that 1st code  line would be better as

Code:

if (sfcx_readreg(0) != 0x01198010 && sfcx_readreg(0) != 0x008a3020) {

that way 1 code for both flashes if he has more than one xbox, and also compiler wouldnt like the B tags ;-)

[vintage_guitar]

The code has already been updated for lflash.c to read large block jasper by tuxuser. I've done this modification myself that n00b describes, and it works, but it's best to start with a dynamic already edited version rather than start editing the old one from scratch every time hard coding.
http://www.xboxhacker.org/index.php?topic=13047.msg91382#msg91382