GFCI wiring same as before, but no power
Have you pushed the &quot;reset&quot; button? Many GFCIs need that done when first wired up.
And really, get a short 10-32 screw (you can buy green ones for the purpose, or green ones with a loop of wire already attached for the purpose, but you don't need to) and look for a pre-threaded hole in the box which is intended for the ground wire - the way the ground is wired currently to a box mounting screw is a kludge and not to code.