When you had it apart, did you happen to notice how easy it might be to replace the internal battery? The one in my 650S is spotty after only 6'ish months, and eventually I'll want to look into replacing it.
Any pointers about popping the end cap off? Just a firm yank?
View attachment 37576
Without foam pad
View attachment 37577
With foam pad
Managed to fix mine. Popped the cap off and found there was no foam on the button to stop the rattle. I place some double sided sticky foam and re-assembled. The button rattle is now fixed.
Now just need to fix the windscreen mount rattle!
Thanks man, I have been trying to live with the rattle for months and I forgot to check this post. Now I have just ordered some foam to fix it!
Cheers