MacBook Pro half keyboard not working - possibly damaged connector

Hello.

About my macbook pro Model A1286

After opening the case and disconnecting motherboard ( We had to fix other problem and we did it) , when we started macbook pro everything was working fine except right side of the keyboard. It looks like the plastic lead of connector is damaged.

Now i have to use apple wireless keyboard and everything is fine. Of course I would like to have my original keyboard back 😀.

The green marked keys are working

Anyone having any ideas? Should i try this kapton tape? loose keyboard/trackpad connector on motherboard

Thanks in advance