I had 6.0 on my Formuler F3 and yesterday I did update via GUI. After update device won't boot. It shows "Boot" plus green dot. The worst thing that I'm unable to flash even from USB. Tried different USB sticks and different versions but it seems that USB stick is not detected or system hangs on bootloader.
Could you be so kind to advise how to solve such issue.
Thank you in advance!