Jetson Nano b01 No boot - Parsing board information failed

Hi.

Suddenly my Jetson Nano is not working. And trying to Flash it appear this error.
I connected the USB TTL but I can’t see nothing! But connecting the USB in recovery mode appears NVIDIA Tegra in the lsusb

/tegraflash.py --chip 0x21 --applet “/home/gianig/nvidia/nvidia_sdk/JetPack_4.5.1_Linux_JETSON_NANO_DEVKIT/Linux_for_Tegra/bootloader/nvtboot_recovery.bin” --skipuid --cmd “dump eeprom boardinfo cvm.bin”
Welcome to Tegra Flash
version 1.0.0
Type ? or help for help and q or quit to exit
Use ! to execute system commands

[ 0.0017 ] Generating RCM messages
[ 0.0028 ] tegrarcm --listrcm rcm_list.xml --chip 0x21 0 --download rcm /home/gianig/nvidia/nvidia_sdk/JetPack_4.5.1_Linux_JETSON_NANO_DEVKIT/Linux_for_Tegra/bootloader/nvtboot_recovery.bin 0 0
[ 0.0039 ] RCM 0 is saved as rcm_0.rcm
[ 0.0044 ] RCM 1 is saved as rcm_1.rcm
[ 0.0044 ] List of rcm files are saved in rcm_list.xml
[ 0.0044 ]
[ 0.0044 ] Signing RCM messages
[ 0.0055 ] tegrasign --key None --list rcm_list.xml --pubkeyhash pub_key.key
[ 0.0065 ] Assuming zero filled SBK key
[ 0.0118 ]
[ 0.0119 ] Copying signature to RCM mesages
[ 0.0133 ] tegrarcm --chip 0x21 0 --updatesig rcm_list_signed.xml
[ 0.0149 ]
[ 0.0150 ] Boot Rom communication
[ 0.0161 ] tegrarcm --chip 0x21 0 --rcm rcm_list_signed.xml --skipuid
[ 0.0171 ] RCM version 0X210001
[ 0.0703 ] Boot Rom communication completed
[ 1.0803 ]
[ 1.0803 ] dump EEPROM info
[ 1.0823 ] tegrarcm --oem platformdetails eeprom /home/gianig/nvidia/nvidia_sdk/JetPack_4.5.1_Linux_JETSON_NANO_DEVKIT/Linux_for_Tegra/bootloader/cvm.bin
[ 1.0835 ] Applet version 00.01.0000
[ 1.1084 ] Saved platform info in /home/gianig/nvidia/nvidia_sdk/JetPack_4.5.1_Linux_JETSON_NANO_DEVKIT/Linux_for_Tegra/bootloader/cvm.bin
[ 1.1925 ]
[ 1.1939 ] tegrarcm --reboot recovery
[ 1.1951 ] Applet version 00.01.0000
[ 1.2221 ]
Parsing board information failed.

  1. Could you attach your cvm.bin here?

  2. Was this board able to get flashed?

  3. If it cannot get flashed now, is it still able to boot up and dump any uart log?

Where can I locate the cvm.bin ? I’m using the SDK MANAGER connected with the sdk carrier board + Jetson Nano b01 … The board initially worked. but suddenly stopped to work. I thought that was the SDCARD but not. I have a Jetson Xavier NX and it work correctly in the same carrier board. I have other Jetson Nano version A02 and the SDCARD and the operating system work correctly here.
The UART don’t have any log. Is dead.

You can read what you’ve posted to me. And it will tell you where to find cvm.bin on your host.

/home/gianig/nvidia/nvidia_sdk/JetPack_4.5.1_Linux_JETSON_NANO_DEVKIT/Linux_for_Tegra/bootloader/cvm.bin

This is the file that I have:
cvm.bin (256 Bytes)

BTW, since your board cannot get flashed, what is the output from USB-TTL if you power on it now?

Hi BARO.

Is this still an issue to support?