I was able to install and use Ubuntu Touch on my Pro1-X after locating the fastboot images on their development server: Jobs · UBports / Porting / Community Ports / android11 / Fxtec Pro1-X / fxtec-pro1x · GitLab. Unzip artifacts.zip for the most recent build, which will have out/boot.img and out/userdata.img. To install:
unzip artifacts.zip
cd out
fastboot flash boot_a boot.img
fastboot set_active a
fastboot flash userdata userdata.img
fastboot set_active a
fastboot continue
So far it's pretty decent. My intended use for the Pro1-X is pocket computer, not primary phone, and I don't t