How to Open the Logitech G703 - iFixit Repair Guide
Got a G703 with scroll wheel issue for 20€ at an auction, I put a piece of paper between the scroll wheel and the encoder. Works like brand new and saved about
Logitech G703 Review
Mouse wheel For logitech G403 G603 G703 encoder roller small PCB plate mice Roller Accessoires|Mice & Keyboards Accessories| - AliExpress