Logitech G300S Optical Gaming Mouse Repair

The G300S Optical Gaming Mouse is an ambidextrous, wired gaming mouse aimed at budget-minded gamers and esports players. It uses a durable ABS plastic housing with low-friction PTFE glide feet and tactile microswitches designed for long life. Key features include multiple programmable buttons, onboard profile memory, and an optical sensor with adjustable DPI. Logitech's support materials note software/firmware tooling changes but provide limited hardware documentation.

The Logitech G300S Optical Gaming Mouse can be identified by the model number (M/N M-U0029). The model label is on the product and the model label located on the underside of the mouse. This label lists the model (M/N), part (P/N), and serial (S/N) numbers.

• Form Factor: Ambidextrous, compact
• Connectivity: Wired USB-A
• Sensor Type: Optical sensor (marketing materials list adjustable DPI)
• Maximum DPI: Up to 2500 DPI (per product marketing)
• Polling Rate: Up to 1000 Hz (1 ms)
• Buttons: 9 programmable buttons (including primary left/right, clickable scroll, two side pairs, DPI cycle)
• Onboard Memory: Onboard memory for storing up to 3 profiles
• Cable: Approximately 1.8 m rubber-coated USB-A cable
• Weight: Approximately 82 g (without cable)
• Primary Switches: Tactile mechanical microswitches (Logitech-branded; specific manufacturer/model not specified in Logitech support documents)

Common repair-relevant faults include double-clicking or failed primary switches, cable damage/failure, worn PTFE feet, and sensor tracking issues. Diagnose by testing on multiple USB ports/hosts, inspecting the cable for breaks, swapping or measuring switches with a continuity tester, and opening the housing to inspect/clean the sensor and internal connector.

For additional troubleshooting help, visit: Visit https://support.logi.com for drivers, software guidance, and contact options (Logitech Support).

Region-dependent limited hardware warranty; check Logitech's warranty page linked from support.logi.com for specific terms and durations.

• https://support.logi.com/hc/en-us/articl...