micro usb port

Might be a stupid question...but how do you open the USB port? Tried opening it the same way I opened the SD port on the other side (pushing down at crease) and it doesn't appear to be working...

I guess I may be the first to damage my remote control because I cannot find any other posting similar to the help I need. Unfortunately, following a flight last week, I dropped my remote. I didn't think anything of it until the next time I tried to fly and the remote was not connecting to my...