My 510 became loose, one of the screws got striped, and as I often over squonk, the drips would pool around the base of the atty and then migrate inside.
I only planned to replace the screw, but once inside, it was a wet mess.


I swapped the screws (one side to the other) on reassembly and they both "bite" now so my 510 is stable.
Pro tip: use a piece of cello tape to hold the buttons in place when reassembling. Apply the tape to the exterior- front of the unit (top to bottom) and insert the buttons from inside and press them into the sticky tape. Bob is uncle!
Cheers
I
ETA: That was not the video I used, I think the video I used was from Daniel, but I can only find his review of the NS version and he doesn't take that one to bits.
I'm sure I downloaded it, but may have deleted it when I completed my task.
Cheers
I