Hi, just inherited a tello drone that hasn't been flown in a couple of years. Bought a new battery, charged it, and tried to download the app from the DJI website onto my android phone & it doesn't seem to be available (I just get a permanent "download pending" message & it's not available in the Play Store). So I downloaded the Tello FPV app and it connected fine to the drone but tells me I need to calibrate the IMU, but so far as I'm able to find, that's something that I can only do with the original Tello app. Kind of stuck, hoping someone can point me in the right direction.