White lines and no touch after housing swap

Hey, I had a completely broken iPhone 6, so I bought a water damage phone on ebay planning to swap the board/touch id and have a working iPhone 6 again, when the phone arrived I tested the screen on the board and it worked fine, but after some plugging/unplugging the display to troubleshoot the phone now the display gives white lines and no touch, sometimes some part of the touch works, and sometimes it just start clicking everywhere, I already spent hours trying to fix it, cleanned both the ends of the connector with alcohol, tried resitting the connector a lot of the times and nothing, sometimes the white lines changes to another place, I attached a pic from the connector and the problem seems to be on the circled part, it doesn't seem to go entirely, but it clicks, someone can help me? thanks