[S922X] Ugoos AM6(+), Help & Support

I know that this is maybe not the right thread but still
I have an issue with rj45 port of ugoos am6b plus similar to this thread Ugoos AM6B+ ethernet issues
Thinking about switching it for x4 extra, is there any problems with x4 extra under coreelec?
Or maybe someone know how to fix lan problem of am6b plus? Maybe some dtb file idk. That would be great.