Scrape the vias until you see copper. Where the bottom 2 arrows point. The other pad is there and the 1 with no via is probably ground so can be jumped from the ground side of the capacitor. Use epoxy to attach the connector then solder wires from the vias to the connector pins. Once done add some more epoxy for strength.
Have you tried it with just the lcd connected, no cameras etc. Could also be a screen issue. Remember the logic board is 2 seperate pcbs soldered together and you would only see damage when they are seperate.
Check for pry damage around the connectors. Also download 3utool, connect the ipad and see if it detects it as you can use this to kick it out of recovery mode.
