Oculus Quest 2 Screen Only Works When Casting.

I bought a second-hand quest 2 from my friend a few days ago, everything was working fine until it prompted to update, I had to go to school so I left it on the charger and let it update, it hasn't worked properly since. I've tried factory resetting, I've cleaned the facial sensor tried sideloading the update from my pc multiple times nothing, the only thing that works is when I start casting the device to my phone, for some reason it works fine then? Is there a solution to this, It'll stop working again when I stop casting.