I have just fitted internal 1TB hdd to my vu+ solo2 se . It came with an internal caddy. so I fitted a 2.5" hdd.
Format the HDD in FAT32
Place & fix in caddy.
With machine on & running, place the caddy & HDD in the correct position.
On the remote. Press MENU
Go to Setup.Enter
System. Enter
Down the page (next page) to Storage devices. Enter.
Hard disk setup. Then Initialisation.