Screen is black and can’t access anything but the guide + Syncing issues

All connections are fine to my Xbox as the loading screen comes on for a few minutes then goes away, sometimes after about 15 minutes of the black screen it shows my wall paper and a few apps/games but I cannot access them or go to my games and apps, my Xbox is extremely slow otherwise and I can’t even access the guide. After 5 minutes of being on the Home Screen it goes off by itself, making me repeat the whole process all over again.

I wasn’t able to do anything when powering on with sync and eject pressed. Went through the same sequence with green screen then black.

for me nothing appears, it is a total black screen and i not access anything

Also another issue I'm having is on a second xbox one where it says syncing data whilst on the don't overexert yourself screen. It then takes a while to sync (or so it appears) and then goes into a black screen. I then have to use xbox home button to exit
out. I also retried this by cancelling on the sync screen and then selected stop syncing but this time it reset to the home screen.

I would do this but it won't let me access anything all i get is a black screen, and it says "signing you in" for about five to ten minutes then it loads into a black screen. I cannot do anything in the mean time.