beagleboard rev c4 bricked

hi all,
i'm riccardo from italy, i have a beagleboard rev c4 and i think it is
bricked. i hope someone can help me to recover the board.
when i switch on the board (with 5v 2.1A) just one led turn on, i have
tried all the methods listed in this page:
http://elinux.org/BeagleBoardRecovery
without any result.

what else can i do?

thanks
Riccardo

http://code.google.com/p/beagleboard/wiki/BeagleBoardDiagnosticsNext

thanks for the reply,
i have followed the steps for preparing the "validation sd card":
  For validation image:
  wget http://beagleboard-validation.s3.amazonaws.com/deploy/201008201549/sd/beagleboard-validation-201008201549.img.gz
  zcat beagleboard-validation-0201008201549.img.gz | dd of=/dev/sdc
bs=8225280

power on the board holding the user button

and this is the output from minicom:
(strange characters) 40W (strange characters)

Texas Instruments X-Loader 1.4.4ss (Aug 19 2010 -
02:49:27)
Beagle Rev C4
Reading boot sector

not there
Loading u-boot.bin from nand
ECC Failed, page 0x00080000
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

what does this mean?

Are you holding the user button down on power up to force it to boot from the SD card?

Gerald

yes

Well, it seems to indicate that you did not create your SD card correctly. It cannot find the boot sector and it is trying to boot from NAND…

Gerald

the only difference between normal boot and sd card boot (holding the
user button) is tha date of the x-loader:
normal boot: Texas Instruments X-Loader 1.4.2 (Feb 19 2009 - 12:01:24)
sd card boot: Texas Instruments X-Loader 1.4.4ss (Aug 19 2010 -
02:49:27)

Sounds like it is seeing the Xloader but can’t find the UBoot. When you do a DIR of the SD card from the PC, what does it show?

Gerald

this is the file list in the sd card:
md5sum.txt
MLO
ramdisk.gz
ramfs.img
u-boot.bin
uImage
user.scr

That looks ok. Are you using the validation image or the demo image?

Gerald

i'm using validation image:
beagleboard-validation-201008201549.img.gz

OK. I suggest you use the diskimager method insted of the zcat method to make the SD card and see if you get the same results. It is possible that you have damaged the NAND, but I don’t see it getting to the point where it even tries to re-flash the NAND. Either way, you should be able to bypass the NAND and just boot successfully from the SD card.

Gerald

i've tried the diskimager method from a machine with windows 7, and i
have the same result.
i'm not able to boot successfully,

There is either an issue with your SD card or the SD card connector. By holding the user button until after the board boots, it will force the card to boot from the SD card. So regardless of what shape the NAND is in, it still should boot. You may need to request an RMA and get the board looked at.

Gerald

thanks for your help gerald.