Hi, I've searched for the problem that I'm having and I've tried some of the fixes described and nothing has worked for me yet. The problem... I haven't flown for about 10 months and decided today to get my bird out for a spin. I updated the firmware to the latest version with no issues, and also all of my spare batteries. I can't get the RC to take an update though. I've used a USB stick, a MicroSD in a card reader, and a direct connection to the USB port on the gimbal. Therefore, I'm certain that the firmware version on my RC is about a year older that the one on the craft. Additionally, I can't get the RC to connect to the DJI GO app. I've tried the 'clear cache, delete app, iTunes backup, restore' routine, but that hasn't changed anything. I just get the front page on the app that says 'How to Connect' and doesn't give me an option to go to the camera view. I suspect that the firmware mismatch is at the root of my problem, but I don't know how to a) check which version I have on the RC without the app, or b) get the firmware to update. Any ideas?