I have a weird problem. Camera/drone/remote were working fine but I crashed my P3 Pro. Replaced it with a P3 Advanced-made sure firmware updated, imu calibrated, compass calibrated, remote has latest firmware. In fact, the drone is flying just fine. Using the C1 button I can get the camera to point straight down and then I can use the silver slider button on the left side of remote to bring it back up to horizon but if I try to use the silver slider button to shoot it straight down it will not work. Only works one way. I also tried calibrating the gimble but no luck. I feel like I tried everything in the program. Is there a factory reset on the remote or something?