mag 256

Hi guys , just tried to add a sub to a mag 256 and in the portal In servers it’s only got general and more (no portals) and then when it’s loading if I press menu it’s got embedded and portal 1 and 2 but I can’t customise them , I tried to factory reset it but doesn’t look like it’s worked , I...

Hi. On my mag 256 box some hd some fhd channels have no sound yet on other devices the channels do. I've tried clearing user data and factory reset but still nothing. Any help would be great. Thanks