after i2cset test, nano can't boot

hi, WayneWWW,
during the flash process, the uart has nothing output. maybe failed at checksum and exit.
What should I do next? thanks.

help~~~

Are you sure your uart console outputs the correct information? Do you ever see the correct UART log when your board was still ok? Normally it would not just dump some hex value.

Also, even it fails for checking the eeprom content, it should still prints lots of bootloader log.

hi, WayneWWW,
i’m sure uart console output 20+ bytes in hex, no other output, i test another board and it works well.
can you help do the command: i2cset -f -y 2 0x50 0xac 0x3f
it’ll reproduce my problem.
thanks

Hi,

I mean could your console output ASCII code?

We are reproducing this issue now.

Hi,

After internal discussion, I think the only solution here is to file RMA.

hi, WayneWWW,

console do NOT output ASCII code. and what’s RMA?

thanks

Please check

We will replace a new Jetson Nano for you.

thank you.

Hi,

We got a solution here. Is your device still there?

hi, WayneWWW,

yes, the device still here, i have contact the RMA and waiting email.

hi, WayneWWW,

what’s the solution, can you reply here? thank you.

Could you try to replace this binary inside Linux_for_Tegra/bootloader?
nvtboot.tar.gz (239 KB)

After these binary, please add below to your board config.

tail jetson-nano-qspi-sd.conf 
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

[b]BOARDID="3448";
FAB="100";
BOARDSKU="0000" ;
BOARDREV="C.0";[/b]
EMMC_CFG=flash_l4t_t210_spi_sd_p3448.xml;
BLBlockSize=1048576;
source "${LDK_DIR}/p3448-0000.conf.common";
T21BINARGS="--bins \"EBT cboot.bin; "

hi, WayneWWW,

i replace the nvtboot.tar.gz and update, it seems successful: http://101.200.50.71/test/host_update_command.txt

the uart log here: http://101.200.50.71/test/uart_output.txt

after command run finish, i reset the nano, the uart only output one byte: 0x00

can give some tips, thank you.

Hi,

Can you boot up the device now? Any uart log? Do you mean it still hangs?

Could you find a HDMI monitor and connect to your nano?

hi, WayneWWW,

yes, it still hangs, i connect HDMI and output nothing, and uart output nothing also.

what’s your reproduce and test result?

thank you.

hi, WayneWWW,
Is there any other way to debug? i’ll send RMA tomarrow, before deliver we can do last test.
thank you.

Hi,

Sorry that I missed the nvtboot.bin file. Please try this new tarball and reflash your device.

“nvtboot.bin” should be copied under "Linux_for_Tegra/bootlader/t210ref/ "
“nvtboot_recovery.bin” should be copied under “Linux_for_Tegra/bootloader/”

nvtboot.tar.gz (157 KB)