I'm having the same issue. App connects to the RC, but RC wont' connect to 3 SE. I've been the sole owner, but haven't flown it in a couple years. I've tried 'linking RC' and pushing the link button on the drone. I've tried powering up the drone while pushing the link button, which starts the factory reset, but it never moves on from the 2 beeps. I've tried a different SD card. App is up to date. Not sure what else to do. Thanks!