My MacBook Pro (Early 2015) won't boot any more; it boots into a flashing screen with a folder with question mark.
I downloaded a High Sierra DMG and created a bootable USB using both Transmac and PowerISO (in Windows 10) and none of them boots the system.
What should I do? Am i doing something wrong here?
EDIT: I have tried from a ubuntu using dmg2img and then making a bootable stick by dd and it didn`t work either.