Hi guys I bought a breeze 4k two months ago. I flew one day. I updated the software and now, I can´t fly. My smartphone is android. I can not calibrate de compass in the third step. the first and second is ok. when I set the third, it´s fail. so.. a sugestion comes up to call the factory to help me. I did, and the guy in the other side said that he can not help me and told me to ask to a lot of smart guys in this forum, to solve my problem. conclusion: Yuneec is pretty cool. despite no solve my problem, he sugest that I´m not smart... ( I followed all the steps several times) ... so.. if someone would like to help me.. I will apreciate..