What kind of oil? wd40 ?

I agree but surmise this as unlikely. This was a hatchet job from the get go.

Thanks for this, you saved me 20$ at least! Funny that I didn’t even think it could be fixed until my search for RC 737M showed this guide.

williams_clan, I had the same gooey mess ONLY under the Vol key!!! ( off gas leak or transfer through from finger on most used silicon??)

The engaging parts of the remote are on the bottom, I used a fine bladed spudger to go down from the top and then gently pry the top up while the bottom forced out. Yes you really have to snap it together with some force!

Works like its brand new !