Hello, I've been searching the pro forum, but can't find an answer. I recently got the PRO and used to be on the Standard. I decided to keep my old firmware, due to the psychological damage I had from updating my standard. I went from 16,000ft dbs to 100ft. Anyway, I decided I want to keep my OG Firmware. My question is, can I do this with the latest DJI GO APP or do I need to find an older one? I don't care about the update bar, just as long as I don't have to do install it to keep flying. Please someone let me know. Thanks!