Hi there, wishing u all happy new years at first. I received my rc eye S yesterday and i started to learning how to flight. A few crash have been occurs and the propeller getting loose. Fly until halfway the propeller get out from my eye S. Replace the new propeller can solve the problem ? What should be notice while replacing the propeller.

And one thing, it is so hard to trim my eye S, any instruction for quick learning ? Hopes u guy understand what am i trying to tell because of my improper english. Thankyou