Hi, my live view quit working after taking my Phantom 3 Pro out of winter storage. After doing research on the forums I decided to try a new camera/gimbal. I don't need 4k so decided to order an Advanced camera/gimbal, since DJI says they are compatible. I tried to install the Advanced firmware and it won't complete the install, just blinks red/green continously with no beeping sound. My question is, does the new gimbal come with any firmware pre loaded on it? I have/had 1.3.20 firmware on my system and would like to stay with that version, if possible. When I turn the drone on with an empty SD card in it it starts and flies perfectly but in the app it shows no signal and firmware n/a. Do you have any suggestions before I send it in to you for repair? Thank you for your assistance. Bill.