Can Thomson TG585 v7 run lede or openwrt?

According to these site he is able to run openwrt,but what is best secured procedure to install firmwer?

The page very explicitly states "NOT supported" in the first line - and remains valid as well, 16 MB RAM are a hard failure (besides there not being any drivers for the ADSL modem).

@nelliot You asked the same question on IRC, recommendations won't be any different here. Better look for other hardware if you want to run OpenWrt.