Logitech G203 LIGHTSYNC Repair

The G203 LIGHTSYNC is a compact gaming mouse from Logitech's G lineup that emphasizes precise tracking and customizable RGB lighting. It features LIGHTSYNC RGB illumination, high polling rate performance, and a durable plastic shell designed for extended daily use. The mouse uses gaming-grade optical sensing and mechanical primary switches rated for millions of clicks. Key features include six programmable buttons, a wired USB connection, and software customization via Logitech G HUB.

The Logitech G203 LIGHTSYNC can be identified by the model number (M/N MU0056). The model label is on the underside. This label lists the model (M/N), part (P/N), and serial (S/N) numbers.

• Model Number (M/N): M-U0054
• Form Factor: Compact, symmetrical (classic G203 shell)
• Sensor: Logitech gaming optical sensor (RAW-grade optical sensor)
• Maximum DPI: Up to 8,000 DPI (software-configurable)
• Polling Rate: 1000 Hz (1 ms)
• Buttons: 6 programmable buttons
• Primary Switches: Omron mechanical switches (industry-standard Omron left/right switches; rated ~10 million clicks)
• Connectivity: Wired USB-A (2.1 m flexible rubber cable)
• Lighting: LIGHTSYNC RGB (16.8 million colors, software-configurable effects)
• Weight: Approximately 85 g (without cable)
• Dimensions: Approx. 116.6 × 62.15 × 38.2 mm (L × W × H)
• Onboard Memory: No onboard profile memory; settings stored/managed via Logitech G HUB

Common repair-relevant faults include worn primary switches causing double-clicks, intermittent USB connectivity from a damaged cable or solder joint, and sensor tracking issues due to debris. Diagnose by testing on another PC/USB port, visually and electrically inspecting the cable and internal USB solder points, cleaning the sensor window, and checking switch continuity; replace Omron switches or cable as needed.

For additional troubleshooting help, visit: https://support.logi.com/hc/en-us/articl... and https://support.logi.com

Limited hardware warranty varies by region (typically 1–2 years). Check Logitech's warranty page for specific regional terms.

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