Trying to remove the foot plate to get to the ecu. Having real trouble getting to the screw on the top right. Any tips??

Also, anything i should/should not do when removing ecu?
Just checking to see if there has been any modification to the ecu. Previous owner said that it was chipped but claimed that it was the work of a previous owner and he had no knowledge of it. Tend to think that it hasn't been, but want to check it before i send the car in to get ATTS fixed, ruling this out as a reason why it is not working.
Cheers!
