Serial Port not found - Seeeduino Lotus Cortext M0+

[jiachenglu]

Hi @h.e.m.van.vugt
Have you used 1.8.0 version SAMD before? The bootloader interrupted which will need to re-flash the bootloader.
Please refer to the below forums.
Seeeduino Lotus Cortext M0 - 15 Pcs dead after uploading first code - #8 by ansonhe97

Odyssey x86j4105 ubuntu 20.4 no /dev/ttyACM0 and no seeeduino listed under lsusb

The uploading process interrupted the bootloader of the Arduino Core. Do you have any other SAMD arduino boards around? You can use this SAMD board to flash the bootloader back in the ODYSSEY.