I recently bought a second-hand Tello from a friend who used Apple my phone is Android. I can get theTello to take off but then it has a mind of its own. Most of the time it just wants to land right after takeoff. If I fight it, it it heads directly too the tallest tree. I've recalibrated it and tried to do a reset can someone please explain how to do it or walk me through the stages of re-setting it Factory? Sure would appreciate it!!!