Note: Puncturing the label (between Underwriters Laboratory and 10 circle arrow symbols) to reach Philips screw will void your warranty and I am not responsible with what you do with this information, including handling razorblades with your bare hands which I do not condone, it is what I had on hand at the moment. If you have a question, feel free to PM me or leave a reply.Parts required:
Non-braided USB cable ($9 from eBay,
here)
-or-
Obtain a mouse USB cable with matching connector as original. You may take apart a defunked mouse and see if the PCB connector is the same. Double check the pinout is the same!
-or the crude method-
Male USB cable salvaged off something and splice wires to G5 USB cable connector. "Find one with thin plastic sheathing, thick ones will be too stiff for mice, IMO"
*Optional - Replacement
Teflon feet to ensure optimal results, remove all glue residue and debris from mouse thoroughly with 90% alcohol and a toothbrush, the surface must be flat.
*See step 5.5 pinout image below to ensure the correct wires are spliced if you plan to go that route.
Tools required:
Small Philips screwdriver (#0 Philips, very small)
Plastic spudgers or you could use a small flat-head screwdriver or fingernails.
Blow dryer "only required if you plan to reuse the teflon feet as heating them before removal will yield better stickyness.
Wax paper "again only required if you plan to reuse the feet, place them sticky side down on waxy side of paper to preserve stickyness or you could place the feet on a sharp edge being careful not to ruin the glue.
Step 0: Say hello to the Logitech G5 mouse in all its glory, except for the hideous cable sheathing.

Step 1: Remove four (4) screws underneath two teflon feet, DO NOT remove the smallest foot in the middle as there is not a screw under it. The last screw is located behind rectangle label on bottom of mouse, directly above the underwriters laboratory symbol, just stab at it with your philips screwdriver and you will punch through.

Step 2: Push USB cable towards bottom of mouse to SEPARATE halves,


Step 2.5: When connector is visible, stop separating halves, circled in image.

Step 3: Disconnect connector on left side of mouse.

Step 3.5 Halves separated

Step 4: Remove weighted tray module screw than remove tray to get room to work.

Step 4.5: Lift white latch on ribbon cable away from mouse and pull cable straight out to remove.

Step 5: Remove USB cable connector

Step 5.5: USB connector pinout

Step 6: Left/right omron switch specs in case they need to be replaced.
2X OMRON Microswitch D2FC-F-7NDigikey SW502-ND