I edited EEPROM and now the Jetson AGX Xavier can’t be flashed. I tried to calculate the 256th bit of EEPROM with CRC-8 referring to the following, but I do not know the initial value of the calculation. [image] unable to flash jetson tx2 devkit from jetpack 3.0 & jetpack 3.3 Jet…

Hi, please also pass these parameters to the flash.sh. It was read from eeprom, but since we skip it now, need to manually set it. sudo BOARDID=2888 FAB=400 BOARDSKU=0001 BOARDREV=D.0 ./flash.sh …

There is no “initial value” for the crc value calculation. This value differs in every module. The value in bit 255 is the checksum value from bit 0~254. Thus, for example, if you change any value in bit 0~254, then you have to re-calculate bit 255. Otherwise, it will show you error. […

Thank you for your reply, WayneWWW. Maybe I can calculate the crc value. I didn’t understand the meaning of “checksum”. (“Initial value” I was expecting is “0x00”.) I have a question about RMA. The warranty period of one year may have expired. Can you replace it even in that case?

I can help you reply the technical problem but the warranty is not in my scope so I cannot reply you. Use the term checksum is because the bit 255 in eeprom is based on the sum of bit 0~254… For example, the eeprom has the content of the serial number of each module, this value will be take into t…

Thank you. Maybe I understand. The initial value meant “the initial value of the calculation”. In the formula below, I didn’t know the value of crc when B = 0 … This self-solved as described above. crc = AddToCRC(B, crc) I’ll ask another department about the warranty. Thank you.

@Nyanpy00 , please also try to set SKIP_EEPROM_CHECK=1 when running flash.sh and see if this will let you flash the board.

It didn’t work… The following is the flash log. ############################################################################### L4T BSP Information: R32 , REVISION: 3.1 ############################################################################### Target Board Information: Name: jetson-xavier,…

Can you directly search the keyword SKIP_EEPROM_CHECK in flash.sh and remove those function that will be executed? Haven’t used this parameter for long time. It should be added to the board config instead of parameters in flash.sh. But directly remove this part from flash.sh should also work.

I deleted the following code in flash.sh and ran it, but it didn’t work… I got the same error. if [ “${SKIP_EEPROM_CHECK}” = “” ]; then boardid=./chkbdinfo -i cvm.bin; boardversion=./chkbdinfo -f cvm.bin; boardsku=./chkbdinfo -k cvm.bin; boardrevision=./chkbdinfo -r cvm.bin; chkerr “Parsing …

The following error. [image] Nyanpy00: [ 3.4475 ] tegradevflash_v2 --oem platformdetails eeprom cvm /home/username/nvidia/nvidia_sdk/JetPack_4.3_Linux_JETSON_AGX_XAVIER/Linux_for_Tegra/bootloader/cvm.bin [ 3.4505 ] CPU Bootloader is not running on device. [ 3.4537 ] Error: Return value 4 Co…

The initial value of the calculation of CRC-8 of EEPROM, Jetson AGX Xavier

Robotics & Edge Computing Jetson Systems Jetson AGX Xavier

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The initial value of the calculation of CRC-8 of EEPROM, Jetson AGX Xavier

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