I have a Tronsmart s89 that I'm desperate to get Libreelec 9 running on. I can't boot your image for the s812 just get the corrupt filesystem. I have booted Demetris' LibreELEC-MXIII_Plus.arm-9.0-devel-20190207022938-5e27f15.img, however the ethernet doesn't work.
Any chance you might have some pointers?