Brothers, i purchased F5 in december 2018 from gearbest and for the last 3-4 months, i didnt have any problem. But after my trip from italy, the first time i tried to start i had exactly the same problem.. many things i tried.. unplugging/plugging the ssd, booting from usb or sd card.. then i decided to buy this item KingSpec 22x42mm NGFF 2242 M.2 SSD 256 GB, and it arrived today (but took 2-3 weeks to arrive to istanbul), and did the same thing by booting from the clean win 10 turkish via a usb, because when firstly checked on bios, it didnt see anything, only when booting from usb with a win10, it saw the new ssd as unformed now installing on it..
Meanwhile, i contacted gearbest and they sent back 45 usd to my wallet and also bought some more items including a 120gb 2242 ssd, too.. you may also check this item from china stores too:Â KingSpec 22x42mm NGFF 2242 M.2 SSD 120 GB
Thanks