How to Fix Razer Synapse Not Detecting a Mouse or Keyboard

Troubleshooting device detection

Razer Lancehead

When Razer Synapse doesn't recognize your Razer mouse or keyboard, it could be an indication the peripheral isn't working properly. Beyond that, you can't customize the device or load the profiles needed for your game. Fortunately, you're not helpless. Here's how to fix Razer Synapse not detecting a mouse or keyboard.

How to Fix Razer Synapse Not Detecting Your Mouse or Keyboard

These instructions apply to all keyboards and mice sold by Razer. However, keyboard and mouse issues likely aren’t tied to Razer’s desktop software. Instead, the problem may stem from connections between the peripherals and your PC.

  1. First, get the obvious fixes out of the way. Unplug and reconnect your peripheral, or plug the peripheral into into a different port.

  2. Use a different PC. Test it on a different PC to be sure your USB port isn't the problem. If it doesn’t work there, your device may have hardware issues, like a bad USB connector or cable.

    This also applies to wireless mice, provided you're still relying on a USB-based dongle.

  3. Try rebooting your PC. Sometimes a simple reboot is all that's needed to get everything working again.

  4. Scan for Device Changes. This essentially refreshes Device Manager. Windows 10 may not initially recognize your connected peripheral. Performing a refresh forces Windows 10 to re-scan the PC and all its ports for new additions. If it discovers your mouse or keyboard, Windows 10 will automatically install the necessary driver(s).

  5. Uninstall and reinstall your devices. A major cause for mouse and keyboard detection errors is the number of unnecessary—possibly conflicting—drivers. You may see listings for Human Interface Device (HID) components you don’t need, like older mice and keyboards you tossed into the trash. Having a long list of HID components isn’t unusual, but if you’re having problems detecting a new mouse or keyboard, removing them may help.

    1. Right-click the Start button and select Device Manager.
    2. Expand Keyboards and uninstall all HID Keyboard Device and Razer-labeled entries.
    3. Expand Mice and other pointing devices and uninstall all HID-compliant mouse and Razer-based entries.
    4. Restart your PC.
  6. Update the Serial Bus Controllers. The drivers running your PC’s USB ports may need an update. This is a simple attempt to fix the issues through Windows 10 before downloading and installing new drivers from your OEM or motherboard manufacturer.

  7. Install the latest drivers. You can do this in a few ways:

    • Using Pre-installed software: Many OEMs like HP and Dell install software that scans their pre-built PCs for outdated drivers and tunes the system. You can simply open the app and scan your PC at any time to search for new drivers.
    • Download from OEMs: OEMs like HP and Dell fine-tune drivers provided by hardware manufacturers to work optimally on your desktop or laptop configuration. Typically, you want to download and install drivers from OEMs for the best, stable performance. But there are situations, like downloading the latest drivers for your discrete GPU, where non-OEM downloads are an exception.
    • Download motherboard drivers: For home-built systems, download drivers directly from hardware manufacturers. In this case, grab the latest motherboard drivers from ASRock, Asus, Biostar, EVGA, Gigabyte, MSI, and so on.
  8. Uninstall and reinstall Synapse. With the hardware options out of the way and still no positive results, uninstalling Razer Synapse is the next step.

    1. Right-click the Start button and select Apps and Features.
    2. Type 'Razer' in the search bar and uninstall all Razer-related software.
    3. Open File Manager > Program Files (x86).
    4. Delete all Razer-related folders.
    5. Select View on the File Manager toolbar, then check the box next to Hidden to show hidden files and folders.
    6. Select OS (C:) in the address bar to navigate back to your root directory.
    7. Open the ProgramData folder, then delete the Razer folder.
    8. Restart your PC. After the reboot, temporarily disable your antivirus program.
    9. Download a new copy of the Razer Synapse and install it.
    10. Restart your antivirus software after installing Synapse.
  9. Check your Synapse version. If Windows 10 recognizes your Razer mouse or keyboard, but they’re still not showing up in Razer Synapse, the devices may not be compatible with the Synapse version installed on your PC. Razer Synapse 3 is still in beta and doesn't support all Razer-branded devices.

If your Razer device isn’t supported, download Razer’s “legacy” Synapse 2 desktop software.

You can view Razer’s full list of supported devices, including mouse pads and headsets, on its website. The list of devices currently supported on Razer Synapse 3 is also available on the Razer website.