Pls brother,
do a clean install of Marwensat 2.7 image with dreamup using a null modem cable, put the last addon server url in the box with DCC and after that install oscam ymod from the addons.url with the blue button. Or if it isn't on the addons just put it manually with DCC. That is all. Hope this helping you. Surf safe, my friend. :thum: