Macbook pro 2014 does not start up after reset
I reset my macbook pro 2014 so another person can use it, but now it does not start up. It gets to a folder with a qeustion mark. I tried recovery mode. I tried to reinstall Mac Os but it only gets to the point where I should choose a disk (then there is no disk). I Tried to use backup from time machine, but there is no disk showing again. Any ideas what to do next?