Hello everyone, this is my first post and I've looked everywhere for the solution. I updated my phantom 3a through the app and it downloaded, but then got the yellow flashing lights and a lost signal. I still have the camera view through the app, but no control. Ive tried everything from different batteries to turning off then on, downloaded the latest firmware from dji and it didnt work. now i cant even reformat my sd card on my Mac. I am really at a loss. i even tried the imu cal and that didnt even cal. any help would be appreciated as i am trying to take this to the mountains tomorrow.