Touch screen not working after attempting screen replacement.

Hello, I’m in the final stage of replacing my Tab A 10.1 screen and powered it on after connecting the ribbons and before gluing down the glass to ensure everything checks out ok. The tablet powered on, however the screen appears magnified and the touchscreen function doesn’t work. I checked that all the ribbons are snapped in place and haven’t glued it back together. I tried a hard shut off twice and removed any film from the screen and that didn’t fix the issue. I didn’t have the problem prior to changing the screen. I replaced it because the screen was cracked. Please advise what I did wrong.