[Q] Phone Stuck On Setup Screen; Tried Resetting & Cache Wipe topic

I just used Kies to come out of a horribly persistent bootloop. When I turn it on, though, it stays at the setup screen. Where you're asked to select your language and all that.

I can rotate the screen for a couple of seconds, and/or use my rocker to adjust the volume and see it on the screen, and can see some messages from my carrier, but can't select anything. Then it freezes completely, in whatever orientation and with the volume bar.

I've taken the battery out and put it back in, factory reset and deleted cache. It still turns on and gets stuck. I don't know what to do.