Razer Synapse 3 is a unified cloud-based hardware configuration tool that levels up your Razer devices’ performance. However, if Razer Synapse is not detecting your mouse, you may encounter a software or hardware issue. Read on and follow the tips in this guide, you will sort out the problem easily.

  1. Check if your Mouse supports Razer Synapse
  2. Update your mouse driver
  3. Check for Razer Synapse updates
  4. Reboot your PC
  5. Try repairing Razer Synapse

Before we start troubleshooting, please check that your mouse has enough power supply and that it’s connected directly to your computer and not through a USB hub. Also, it’s recommended to restart your computer to flush the buffer before proceeding. Next, follow the steps below.

1. Check if your Mouse supports Razer Synapse

If Razer Synapse is unable to detect your mouse, the first thing you should check is whether the mouse is Razer Synapse-supported. Razer’s official website has listed its supported devices. Click the link below to view more detail:

  1. For Razer Synapse 3
  2. For Razer Synapse 2.0

If your device is not supported by Razer Synapse, it doesn’t need Razer Synapse to work. If it’s supported but unable to be detected, proceed with the next tip.

2. Update your mouse driver

When Razer Synapse is not detecting your mouse, one of the first things you should do is to update your Razer mouse driver, since an up-to-date mouse driver always ensures the best pointing performance and fewer bugs.

To avoid driver incompatibility, we recommend updating your driver by reinstalling it. Here’s what you can do:

  1. On your keyboard, press the Windows key and X at the same time, select Device Manager.
  2. Double-click to expand the category Mice and other pointing devices. Then right-click your Razer mouse driver and click Uninstall device (the name of the device can be different on your computer). If your mouse cannot be detected by Device Manager either, then you should contact Razer Support.
  3. Follow the on-screen instructions to complete the uninstallation.
  4. When the driver is uninstalled, restart your computer for the change to take effect, and Windows will automatically reinstall the mouse driver for you.

For your convenience and driver security, we recommend reinstalling your Razer mouse driver in a different way with the help of Driver Techie.

Its ever-growing driver database allows you to always have access to the latest device drivers that you need. More importantly, Driver Techie simplifies the driver update process, so all it takes is just 3 clicks (for Pro users), and all your drivers are updated.

To use Driver Techie to find you the latest drivers:

  1. Download and install Driver Techie, then launch it.
  2. Click Scan Now.
  3. After the scan, select all the drivers you need to update and click Update All. Then all your drivers will be updated automatically without you having to do anything else.

Please note that Update All is available for Pro subscribers only, otherwise, you can only manually update the driver one at a time. To see how to manually update the drivers one by one, please check this post.

If you’re a Pro user of Driver Techie, and need our technical support to help with the Razer Synapse not detecting mouse problem, please feel free to contact <support@drivertechie.com>.

3. Check for Razer Synapse updates

Razer software updates come with important changes for better Synapse’s performance, fewer bugs, and new features. Here are the steps to update each version of Razer Synapse:

For Razer Synapse 3:

  1. On the system tray, right-click the Razer THS icon and select Check for Updates from the menu.
  3. If there is a new update, click UPDATE to install it.

For Razer Synapse 2.0:

  1. Launch Razer Synapse 2.0.
  2. Click the cog icon in the upper-right corner of the screen.
  4. Click UPDATE NOW.
  5. The update should start automatically.

Once completed, you should have the latest version of Synapse. Check if the problem is resolved.

4. A clean reboot to your PC

If your mouse is a newly connected Razer device or you have just completed an update to your computer, then you’ll need a clean reboot for your computer to recognize your mouse. Moreover, a clean boot environment can ensure that there is no third-party software interfering with your Razer Synapse.

To do a clean reboot:

  1. On your keyboard, press the Windows logo key and R together to invoke the Run prompt. Type MSConfig and press Enter.
  2. From the top menu, select the Services tab, check Hide all Microsoft services, and then click Disable all.
  3. Now, click the Startup tab from the top menu and click Open Task Manager. Click each of the tasks and click Disable.
  4. Now, back to the System Configuration page and click the OK button to reboot your computer.

Next, check if Razer Synapse detects your mouse. If you’re still experiencing the issue, move on to the next method.

5. Try repairing Razer Synapse 3

If none of the methods above fixes the issue for you, then you should consider repairing your Razer Synapse. Please note that this repair tool is for Razer Synapse 3 only. It might be due to some corrupted files preventing Razer Synapse from detecting your mouse.

To repair Razer Synapse 3:

  1. In the Windows Seach box, type Apps & Features.
  2. Select Razer Synapse 3 and click Modify.
  3. Select Yes when the User Account Control window pops up.
  4. Click REPAIR and wait for the repair process to complete.
  5. Restart your PC.

Next, use the Windows System File Checker to repair any corrupted system files. To do so, you can follow the Microsoft Support Guide or the simplified steps below:

  1. On your keyboard, press the Windows logo key and R together to invoke the Run prompt, type cmd, and press Shift, Ctrl, and Enter together to launch the Command prompt.
  2. Paste the following command lines and press Enter to execute: sfc /scannow

  3. Wait until the verification is 100% complete. The scan results will be shown after this process is finished.

For Razer Synapse 2.0, you’ll only have to clean reinstall the software, and do the SFC scan as in the steps above.

Finally, it’s recommended to remove the old drivers from Device Manager for your Razer mouse or any other devices. These unused drivers may also trigger some unexpected issues.

To remove the old drivers:

  1. On your keyboard, press the Windows key and X at the same time, select Device Manager.
  2. Click the View tab from the top menu and select Show hidden devices.
  3. Expand the following categories based on what devices you’re using:
    Audio inputs and outputs
    Human Interface Devices
    Mice and other pointing devices

  4. Right-click on the unused drivers then select Uninstall device.
  5. Follow the on-screen instructions to complete the uninstallation.
  6. When the driver is uninstalled, restart your computer for the changes to take effect.

Hopefully, your Razer mouse will be detected and work properly. If you have any other ideas to share, please feel free to leave a comment below.