Constant data recovery failed loop after replacing screen.

I just re-replaced the screen, changed the digitizer, and now the phone boots. Only problem left is the phone keeps trying to do data recovery and failing. I've tried flashing iOS 11.4 via 3uTools but it keeps giving a "recovery failed" or "do not disconnect device" error despite the cable being in pristine condition. I also have to manually put the phone into recovery mode because 3uTools fails to do so (something to be cautious about). I have also tried to update via iTunes which "worked" but the phone is still in a data recovery loop. What's worst is that every flash or data recovery attempt makes the phone automatically disable itself without asking for the passcode for 1 minute or 5 minutes when finished. Please help me. This phone is eating at me.

My old post where the question was solved and answered gives some history on the phone. It now boots and is constantly attempting data recovery. You can find the post here: iPhone 6s Plus dropped, cracked screen, now it won't boot or vibrate..