In November of 2018 I ordered a refurbished Typhoon H pro. Prior to its arrival I downloaded the Owners Manual from the Yuneec website. I wasn't familiar with the capabilities of GPS based drones and was amazed and had difficulty in believing that it could do what it said. I had problems with the drone that I suspect were due to the old app data not being cleared after the firmware was updated. The Owners Manual wasn't of any help. I Googled and came across this forum and found many negative comments about the Owners Manual and recommendations to use the modified manual. It wasn't of any more help in solving the problem but I've been using it ever since. After reading some negative comments in a recent post and now knowing a bit more about drones I checked the original manual and found it to be clear and well written and was unable to find any reason for the negative comments. Could anyone help me identify the errors?