Partial Digitizer Functionality (new screen same issue)?

Hello!

I myself have never encountered this before but I would start by cleaning up the connections using isopropyll alcohol. If this does not resolve the issue then check the connections and check no pins are bent within the socket. I have experienced bent pins in the digitizer connection before but this caused a none-responsive touch screen rather than partially responsive but I'd still check it out, if they're bent then do your best to straighten them. I used a tiny sewing needle to achieve this but I'm sure there is a much better suited tool for the job.

Before claiming the pins to be straight compare them to ensure they are actually bent, I suggest using a magnifying glass to have a closer look.

Get back to me with the results :)