For me the fix seemed to be quite simple! My screen often started to give me ghost touches after a charge or using my headphones, so I thought the problem must lie somewhere around these two connectors. When I took back cover off, I could see that the lower main board can be moved a little by the USB charge cable, as it is not glued on strong enough. So this can cause the digitizer connector to get loose! I glued the main board down with 2 sided adhesive, attached the digitizer connector properly and added little stripes of tape to the backside of the black shield to hold the digitizer connector in place in the future. For now I have not had any problems anymore, and this realy seemed to have been the issue and fix!
Hope this can help