OK I just downloaded TyphoonH_Ver2.15_A.bin it downloads as a .bin not a zip. Copied it to the SD card but it won't upgrade. Some times it says no file in SD card, other times it says upgrade complete after a few seconds but the version does not change . Can dome one tell me what the Ver #s are after the update in the ST16? Funny the the details in Yuneec site says release date 1/1/2016.