Hello! I got an U2C Z Pro (2/8GB, S905X) and tested the latest m9-pro-u2c-x-u5x-s-vfd.conf, but I can’t get it to work.
I found a dtb.img similar to my device. Someone over here contacted the official u2c seller on amazon.ca and got the official update file, containing the dtb.img. I’ll contact them, since mine is a U2C Z Pro, not U2C X Super, but the displays look exactly the same (without BT). The chip is a HBS658 and The Coolest mentioned it already over here: coreelec.org - Help with VFD.conf
Another thing I found is this: A user called hlyi published hbs658service on GitHub. I'm not sure how to compile, install it or if it's already included in the builds.
I also tried using gxm_q201_2g instead of gxl_p212_2g, since hbs658 it's mentioned here: GitHub Gist - aep / dts
But no luck.. It seems to be implemented for the S912 U2C devices, right?