Failed to restart into bootloader

HI,

root@Ubuntu:~/Downloads# ./flash_linux.sh
Flashing board… If you receive a ‘Permission denied’ error, you can set up udev rules via:
printf ‘KERNEL==“ttyUSB[0-9]",MODE=“0666”\nKERNEL=="ttyACM[0-9]”,MODE=“0666”’ | sudo tee -a /etc/udev/rules.d/50-myusb.rules
(unplug the device for this to take effect)

[ETA] Connecting to /dev/ttyUSB0…
[ETA] Connected, restarting into bootloader…
[ETA] Not in bootloader mode yet… Restarting into bootloader at baud rate 460800…

Failed to restart into the bootloader. Press the RESET button on your AI Sensor
(the LEDs should be blinking) and run this application again.
root@Ubuntu:~/Downloads#
root@Ubuntu:~/Downloads#
root@Ubuntu:~/Downloads# eta-flash-tool --firmware-path eta-compute-ecm3532-ai-sensor.bin
[ETA] Connecting to /dev/ttyUSB0…
[ETA] Connected, restarting into bootloader…
[ETA] Not in bootloader mode yet… Restarting into bootloader at baud rate 460800…

Failed to restart into the bootloader. Press the RESET button on your AI Sensor
(the LEDs should be blinking) and run this application again.
root@Ubuntu:~/Downloads#
root@Ubuntu:~/Downloads#

I get the above errors, when i try using the flash_linux.sh

Thanks

Hi @vlsireddy, if you press the RESET button on your AI Sensor do the 5 LEDs start blinking rapidly (after a few seconds they should go out)? If so, try to press the RESET button when this message appears:

[ETA] Not in bootloader mode yet… Restarting into bootloader at baud rate 460800…

HI @janjongboom ,
yes, i press RESET button, i see LEDS blinking on 4 LEDs in D1, D2, D5 and the middle one[D3 ??]. last LED [D4 ??] does not glow.

the LEDS does not go out after few seconds, they are in that blinking fashion forever.

@vlsireddy I’ve pinged someone from Eta Compute, hopefully they have more info.

@vlsireddy Could you check the orientation of the Sparkfun board? If plugged in incorrectly the board would still work a bit due to leakage power, but won’t actually start up properly.

Hi yes,
you are right. i connected it reverse direction. that was the issue. Thanks for pointing. 1st setup learnt it hard way.

@vlsireddy :smiley: Great, thanks for reporting back.