Ps4 doesn't start?

So the following problem I have just bought these Ps from EBay and should upgrade the system with a usb stick by putting the version on the stick comes when man keeps the start button pressed until it beeps twice does nothing

Exactly the same problem I had a long time ago I had the uodate versiin Checked downloaded over stick then plugged into the ps4 and nothing happened then somehow the complete ps4 reset then had to reinstall all games

You may need a better stick (probably USB 3.0, but you have to research the port on your device)

How did you reset PS if I may ask? Because if you mean this menu that comes when you press and hold the start button, it won't work for me because when I press reset the same thing comes after the ps restarts

I really don't know it was a long time ago I pressed something

Research Research Research, like everything in computer science, do enough research and you will find a solution.

Has the ps4 been completely reset?

Think yes since I bought it from eBay today