Got a friend here who's trying my iPad mini 2 to potentially buy it to use with his P4 due to instabilities on android... but we can't get it to connect to the RC, "enter camera view" never comes up. I also have an iPhone 6s and an iPad Pro 12" here that connect instantly without issue. Everything is on latest iOS and DJI GO app versions. 2 cables tried. iPad Mini 2 freshly reset, twice. No issues either with a Samsung Galaxy S7. Is there a known issue with the Mini 2 and P4??