7 Inch Touchscreen Removal

[philtye]

Hi Has anyone attempted a removal yet of the touch screen, I have spent a couple of hours trying to figure it out without success, I found two screws on the top section with the volume buttons but it does not appear to make any difference, I am wanting to do a retrofit rear camera as it was not available as option on the L2 but trying to firstly work out removal then to see if I can work out wiring into the head unit.  Many Thanks