removal of opentx on horus10s

[micka]

hi
has anyone got an idiots guide on how to remove opentx on horus 10s express and re-install with fros
system, thanks in advance
mick

[Kilrah]

FrSky website download page for the original Horus has flashing instructions. Same for the Express except just you use the files from the Express page.

[micka]

thanks
i saw that but never sure wether to download to computer or sd card or connect radio either on or off
these are the things i don’t know and they don’t say at all