PocketBeagle not booting issue

Hello all,

I’ve been experimenting with the working PocketBeagle and possibly modified the uEnv.txt file using the Cloud9 IDE terminal. Then I tried to reboot the board with the shutdown –r now command. The board didn’t reload successfully, and after rebooting manually only the power LED was on.

Thinking that I could have corrupted the image, I then erased the SD-card with the diskpart and flashed the SD-card with Etcher once again. The image used is Debian 9.3 2018-01-28 4GB SD IoT. Again only the power LED is on, no other signs of life. The board is also not present in the Device Manager anymore if the SD-card is on the board. If the board is connected to the PC without the SD-card, it’s still recognized in the Device Manager.

The SD card is fine, because it’s recognized as a Linux filesystem partition, and later I’ve also flashed the image to a new clean SD-card.

If this is of any help, the uEnv.txt after reflashing contains the following lines (apart from the commented ones):
cmdline=coherent_pool=1M net.ifnames=0 quiet

How can the board be revived? Thanks