Can't get the bearing out of my Zenduo

I think some grit got into my Zenduo bearing, and I want to take it out and clean it, but I can’t figure out how to get it out of the spinner. This is what it looks like with the button off. It seems like the other button should come off in order to make it possible to get at the bearing, but I’ve tried everything I can think of and that second button isn’t going anywhere. Is there another way to get the bearing out that I’m not seeing? Or some other way to get that second button off? (I know I've seen people talking about changing the Zenduo buttons, which means both of them must come off, but I've been at this for days and the second button will not budge no matter what I do.)

This is my favorite spinner, and I was even thinking of getting a second one in rainbow, but if it's this difficult to take the bearing out I might reconsider :( It's barely left my pocket since I got it, but right now it's so noisy I can't really take it anywhere. Help me save my spinner, please?