Hi @PJ_Glasso
do you know where I can download the driver you mentioned?
It was strange that I was able to use the webtool to flash TRMNL firmware then the firmware performed an auto firmware upgrade then it never comes back. When I tried again to flash the lower version firmware again the web tool just said preparing then timeout.
So I tried different cables, rebooted, tried the BOOT mode to flash the factory but doesn’t work.
I was wondering if it’s bricked but after searching, it’s said the esp won’t break as the ROM is not writable.