Why is the RGB lighting not working on my G502?

by Jordan Keats · Published 21/05/2025 · Updated 22/09/2025

Applies to: Logitech G502 Lightspeed / G502 X Plus / G502 Hero (RGB models)
Last updated: May 2025

Problem

The RGB lighting on your Logitech G502 isn’t turning on, syncing, or responding to changes in Logitech G Hub.

Solution

RGB lighting issues are usually caused by power-saving settings, software misconfigurations, outdated firmware, or onboard memory conflicts. You can restore lighting functionality with a few targeted troubleshooting steps.

Step-by-Step Troubleshooting Guide

1. Check Power and Connectivity

Wired Models: Make sure the USB cable is securely connected and functional.
Wireless Models:
- Ensure the mouse is powered on
- Confirm it’s not in low-power mode (battery below 10%)
- Try charging the mouse—lighting may disable when the battery is low

2. Restart or Reconnect G Hub

Quit Logitech G Hub completely (right-click > Exit in system tray)
Re-launch G Hub and allow it to fully load
Ensure the G502 is detected and visible in the G Hub dashboard

If it doesn’t appear:

Try another USB port (directly on the motherboard if possible)
Re-pair wireless models using the “Pair a device” feature in G Hub

3. Reassign Lighting in G Hub

Click the G502 in G Hub
Go to the LIGHTSYNC tab
Try setting a Fixed Color or Color Cycle effect
Confirm the brightness slider is not at 0%
Toggle Sync Lighting OFF (in case another device profile is overriding settings)

4. Check Onboard Memory Settings

If you’re using Onboard Memory Mode, lighting is limited to basic effects
Switch back to Software Mode by clicking the profile dropdown and selecting your G Hub-managed profile
If lighting works now, the issue was likely related to onboard profile limitations

5. Update Firmware

In G Hub, click the gear icon ⚙️ for your mouse
Check for and install firmware updates
Reboot your system after updating

6. Try a Factory Reset (if nothing else works)

You can reset onboard profiles:

Open G Hub > Onboard Memory tab
Delete all onboard profiles and reimport a default one
Or hold down DPI Up + DPI Down + Center Button for ~5 seconds on some models (unofficial method)

Notes

RGB lighting is disabled automatically to conserve battery on wireless G502 models
MacOS users may experience limited lighting support in G Hub
RGB effects only sync across devices if LIGHTSYNC is enabled and G Hub is running