Board stocked in EDL mode

Canonical Ubuntu Ubuntu OS issues
1

Hi, we follow your guide on one of the boards to flash into Ubuntu. But during the process, it failed to flash the Renesas firmware. After that, the board is stocked in EDL mode. We have tried re-powered the board several times. But it is always in EDL mode. How can we bring it back?

Thanks.

2

Have you attempted to re-flash Ubuntu or other versions?

3

The board failed to respond to any QDL commands

4

IDK if this will help, but you should see something useful if you hookup the micro-usb and take a look at the serial output.

5

You can run the following command and then try again.
sudo systemctl stop ModemManager