







So as you can see, these are what the mice look like side-by side. While they look drastically different, the ergonomics are actually very similar among the two.





The first step was to take the mouse feet off and unscrew the screws that hold the chassis in place.

Lever the feet off gently with a flathead screwdriver.





And they just peel right off.

There's four screws on the underside of the mouse.









Using the flathead, gently separate the top from the chassis, starting at the back...

... and working your way towards the front. Optional: using the flathead disconnect the ribbon that connects the thumb-button board to the mainboard.

Continue levering the top away from the chassis. When you get to here or so it might start getting a little stubborn, but keep with it, it will separate with enough force.



And here we have the chassis with the top cover removed.









Those are some pretty sweet looking innards. Looks even more clean than the 500s, and has some pretty nice mechanical switches for the extra buttons, opposed to the pushbutton switches the 500s had. Here's a side-by-side of the two mice for comparison: The next step was to separate the chassis from the top of the mouse.Those are some pretty sweet looking innards. Looks even more clean than the 500s, and has some pretty nice mechanical switches for the extra buttons, opposed to the pushbutton switches the 500s had. Here's a side-by-side of the two mice for comparison:









That's awesome. The wheels use the exact same assembly. Swapping them out should just be a simple case of pick up and drop. Okay let's do just that then. I'll use the 500s in the pictures, but the process of taking the scrollwheel assembly off is the same for both mice.





So this pin that holds the assembly in place on the board. Just gently ease it out.

If you have trouble push from the other side with the screwdriver.

Now you can just take the entire assembly off.

Repeat the same process on the other mouse.

The mice's two wheels.

Now simply drop the 500s' superior wheel into the 502.



Put the pin in, drop the thumb-button board back in place and reconnect the ribbon cable.

Finally drop the top back on, screw the screws back in and stick the feet back on.

And now we have a 502 with a superior scrollwheel.

Seriously. Look at that gorgeous rubberised wheel. nnggh.





That's awesome. The wheels use the exact same assembly. Swapping them out should just be a simple case of pick up and drop. Okay let's do just that then. I'll use the 500s in the pictures, but the process of taking the scrollwheel assembly off is the same for both mice.











So I recently acquired a Logitech G502 mouse, and I have to say I absolutely love it. It's a beautiful mouse, and a worth upgrade to my old G500s mouse. However my one gripe was the new all-metal scroll wheel. While the weight was nice, I missed the rubber ring around my old 500s. This led me to attempt to replace the new 502 scroll wheel with the old one from my busted 500s.So let's get started shall we?So the feet are layered. There's double-sided adhesive foam, with the feet on top. On the back foot, I managed to peel off the feet with the foam. However on the front two feet the foam stayed stuck to the chassis.