any way to get a save from another device
Upload/Download sync in the save and load menus
do u have a save around when they go too the island
No
do i got to restart then
Yes, if you don't have your own save from before the island, then you'd have to restart.
You can get there quickly with skip "unseen text" in the options, and just roll through the main story to get to where you wanna be.