The instructions for Drone #3 were not only in English that was correctly translated, but they included something that the ones for Drone #2 did not, instructions on how to properly change out damaged blades. Turns out there are two different kinds of blades and they sort of go in certain spots!
While poorly flying Drone #2 around I did have to change out a couple of damaged blades, but because the quadracopter continued to fly after each swap, I must have gotten lucky twice. Little did I know, that when it was doing the one sided hop, if I moved two blades around correctly, it would have flown. What I did do, was swap one blade out, which caused the drone to just lazily spin while still totally earthbound. This is the point where I was allowed to buy Drone #3.
By the time I read the instructions for the correct blade replacement procedure I didn’t have enough of the proper type propellers to get Drone #2 airworthy again. But I did have the 4 back-up blades from Drone #3. Yeah, Drone #2 flies again! But not well, it makes a loud ticking noise and drifts hard right. One set of the blades are hitting each other. I guess the slightly larger drone must use slightly longer props…maybe next time I order something from Amazon, I’ll tack on a few bucks for some new blades for the smaller Cheerson CX-10.