Hello guys. I'm new to drones and just bought a Phantom 3 Standard this week. I try to do preflight checklists but a couple of times I have forgotten and left the Gimbal guard on after powering it up. It is usually when I don't plan on flying it but hooking it up to the computer to download media. One time it was for several minutes while I was downloading before I noticed it on there. I did forget once before one flight though as well. The gimbal seems to be working fine but what kind of damage could I have already done? If it does need repair because of it down the road, how costly is it to repair? Thanks in advance.