[SOLVED] Razer Deathadder V2 or V3 Pro Mouse Not Working

The Deathadder V2 Pro, released in September 2020, is a very popular mouse from Razer. The product was refreshed with V3 in August 2022.

Based on customer feedback, both the V2 and V3 are excellent products. They do however have some technical issues that can be very frustrating to users. We have done our research to identify problems and solutions.

Solutions are presented systematically so you can easily follow along. In some cases we have linked to a more detailed solution.

Now without further ado, let’s get your mouse fixed!

What does Not Working mean?

Here is a list of common problems with the Deathadder v2 Pro. They can largely be grouped into two main categories:


Examples of connectivity issues are:

  • Mouse freezing
  • Not connecting to wireless
  • Bluetooth not working
  • Hyperspeed 2.4 GHz not working
  • Not turning on at all
  • Cutting out at random


Examples of mechanical problems are:

  • Left Mouse Click too sensitive
  • Loud clicking sounds

How to Solve Deathadder Connectivity Problems

In the following set of troubleshooting steps we start with the basics (easy checks), a clean software and driver install. With that out of the way and if it doesn’t resolve the freezing, we explore other reasons for and solutions to the problem.

Basic Checks

Does the mouse work in Wired Mode?

The Deathadder V2 Pro supports both wired and wireless modes of operation. If the issues you are facing persist in both modes then it’s most likely not a wireless connectivity problem. Rather it could be an issue that can be resolved by either:

  • Cleaning the optical sensor
  • Performing software and firmware updates
  • Fixing mechanical issues

Check the battery level

The Deathadder uses a Li-ion rechargeable battery. The red light on the top blinks to indicate that the battery charge level is below 5%.

Deathadder V2 Pro

Once the battery is completely discharged it will not flash any more. To charge the battery connect the mouse to your PC using the cable provided.

Clean the mouse

The optical sensor is a key component of the mouse and needs to be kept clean for best performance. If the sensor’s view is obstructed, it will cause issues.

Deathadder Optical Sensor

Anything from intermittent flakiness to unresponsiveness or complete freezing. Use these instructions to clean the sensor.

Software Updates and Settings

Re-install Synapse

  • Download Synapse
  • The video below shows the steps involved

If you still have a problem with the mouse freezing go to the next step

Install the latest Windows Mouse Drivers

One of the main reasons can be the mouse drivers. As all the operational information is loaded on the drivers. Follow these steps to update the drivers with the latest version

  • Right-click on Device Manager in the Start Menu
  • Click View to Show hidden devices
  • Double click on mice and pointing devices
  • Right-click the mouse driver and proceed to Uninstall
  • Click OK
  • Reboot the PC and Windows will re-install the latest drivers
  • Check to see if the mouse is working efficiently

There is a possibility that Windows did not update the drivers. If that’s the case, the mouse will continue to freeze. In that case, proceed with the next few steps:

Set All Razer Services to Automatic

  • On the keyboard, press the Windows + R key to open the Run dialogue box.
  • Type in “services.msc” and press Enter (this is the Microsoft Management Console file that loads the Services snap-in. It is used to administer Windows services)
  • Scroll down to the Razer Central Service from the drop-down menu.
  • Right-click Razer SDK Server and select Properties
  • You should now see a window associated with Razer Chroma SDK Service Properties
  • In the Start-Up section, select Automatic.
  • Click Apply and then OK.

Check to see if the freezing still exists. If it does, then go to the next step.

Reset Surface Calibration

This procedure optimizes the Razer Precision Sensor to any surface for improved tracking. Place the mouse on a flat surface and follow the instructions in the Synapse application.

Adjust the Power Management Settings for the USB Controllers

  • Turn off the feature “Allow this computer to turn off this device” setting if it has been selected in the USB Controllers
  • Right-click on the Start Button and select Device Manager.
  • Click on the Universal Series Bus Controllers to open.
  • Right-click on USB Controller to get Properties.
  • Go to Power Management and de-select the function” Allow this computer to turn off this device to save power” if it is enabled.
  • Click Ok.
  • De-select the USB Controllers option for the rest.

Now check to see if the problems have been resolved.

Disable the Razer Game Scanner

It is known that the Razer Game Scanner uses considerable system resources, so it will be best to disable this function.

  • On the keyboard, Press Windows Key + R keys to open the Run box
  • Type in ‘services. msc’ and press Enter
  • Double-click the Razer game Scanner to reveal its properties
  • In the Start-Up Type section switch select Disabled
  • Click on Apply then OK

Tests for Connectivity

Check the Wireless Link

An issue with the wireless connection can result in freezing, intermittent cut outs, stutterting and flaky behavior.

Deathadder v2 Pro uses two different methods of wireless connectivity:

  • Hyperspeed
  • Bluetooth

The mouse uses only one of the two at any given time. The user has to make the selection.

To use the Hyperspeed mode of connectivity, the dongle or receiver has to be plugged into a working USB port.

Hyperspeed USB dongle

As a first step, re-establish the wireless connection by

  • Unplugging the Hyperspeed USB wireless receiver
  • Wait for 10 seconds
  • Plug the wireless receiver back in.

Make sure that you’ve selected 2.4 under the mouse using the slider switch.

Follow the instructions here for connecting.

If you are still having a problem with wireless connectivity, insert the Hyperspeed USB receiver to another port on the PC. Then try connecting again. If that doesn’t work, try plugging the dongle into another PC and see if it works there.

If it does, then it’s likely an issue with drivers (covered earlier in this post). If the dongle doesn’t work on another PC then it will have to be replaced. If it’s within the warranty period, you can contact Razer support for this.

If the Hyperspeed dongle is not working and you’re unable to replace it, then try connecting the mouse using Bluetooth. Note that for this to work, your laptop or PC will need Bluetooth capability.

Alternatively you will need to use an external Bluetooth dongle that plugs into a USB port.

TP-Link USB Bluetooth Adapter for PC, Bluetooth 4.0 Dongle Receiver, Plug & Play, Nano Size, EDR & A2DP Technology, Supports Windows 11/10/8.1/8/7/XP for Desktop, Laptop, PS4/ Xbox Controllers (UB400)

  • Enable Bluetooth settings on your computer
  • Make sure that the mode slider under the mouse is set to Bluetooth
  • Press and hold the two side buttons and the DPI stage up button simultaneously for three seconds to activate pairing mode. The status indicator will blink twice in repeated intervals to show that the device is in pairing mode.
Deathadder v2/v3 Pro Bluetooth connect
  • Select the Deathadder v2 on your PC or laptop
  • Once paired the status indicator will change to a static blue color for two seconds
  • It will then turn Off

Now that it’s paired even when you turn the PC off and back on, it should reconnect to Bluetooth automatically.

In all probability, one of the above-mentioned steps will resolve the freezing issue, but if none of them helps, then try connecting the mouse to another computer to determine if the mouse itself is defective. You can always get a replacement within the warranty period.

Remove Sources of RF Interference

Your Deathadder might be disconnecting at random because there are other wireless devices nearby that are operating at the same time. These devices (sometimes with signals that are much stronger) will interfere with the smooth operation of the mouse.

Examples of such devices are Wi-Fi routers, Microwave Ovens and even your cell phone. Here are some tips on how to solve interference issues with the Basilisk. A similar approach can be taken with the Deathadder.

Switch USB Port

If you’re using a USB 3.0 port, try switching to a USB 2 port on your PC. In many situations, this solves the problem.

How to Solve Deathadder Mechanical Problems

Deathadder v2 or v3 Pro left-click too sensitive

This is a known issue with some mouse hardware. Some users have also reported weird clicking behavior as well. If you recently purchased your mouse, we recommend contacting customer support for an RMA. Note that unlike the Basilisk X, this mouse does not use mechanical switches. Instead it uses Optical switches.

Frequently Asked Questions about Deathadder

Blue Light Blinking – What does it mean?

This indicates that the Bluetooth is pairing. It’s not a problem unless it keeps blinking.

  • When connecting using the Bluetooth Mode, slide the button below the mouse to the BT position
  • A blue light starts blinking, suggesting it is ready to pair
  • When a suitable compatible device is detected it automatically connects and the blue light goes off. If you are having problems connecting to Bluetooth check out this detailed article.

Deathadder V2 Blinking Red – What does it mean?

  • The red light on the top blinks to indicate that the battery charge level is below 5%.
  • This blinking will continue till the battery is drained out.
  • The solution is to charge the mouse.

Deathadder not working after Windows 10 Update

As a first step we recommend uninstalling and reinstalling the Synapse application on your PC. If that doesn’t resolve the issue then try the following:

  • The “Allow Computer to turn off this Device to save Power’ may be disabled for each Serial Bus Controller in the new update.
  • Switch to a different USB 3.2 Gen 1 port.
  • Unplug the 2.4G adapter,
  • Remove the mouse with the Device manager
  • Restart the PC and connect to the same port.

Every time I shut off my computer and restart it the mouse does not work – how to fix this?

This normally happens when the Hibernation mode of the computer is enabled. This mode must be disabled and there are two phases involved.

  1. First through the Device Manager and
  2. Disabling the Hibernation support itself

Here is the procedure:

  • Go to the Control panel and select “Hardware and Sound”
  • Click on Device Manager in this section.
  • Expand the “Universal Serial Bus” to see the “Root Hubs”.
  • Right-Click on the root hub and select “Properties”.
  • Go to the Power Management tab
  • Disable the “Allow this computer to turn off to save power” function.
  • Go to the Control Panel and select System and Security.
  • Click on Power Options.
  • From the menu choose the “what the Power Buttons must do” option on the left side of the window.
  • Click on “change settings that are currently available”.
  • Go to the bottom of the page and deselect the Hibernate button.
  • Click “Save Changes”.

Why is my Deathadder Charging Dock not Working?

Please read this post for tips on how to resolve the charging dock issue.

Why does the Deathadder V2/V3 keep Auto-shutting off?

This is a known issue with the mouse. Update the Firmware to the latest version.

Why is the scroll wheel jumping?

The scroll wheel gets dirty and accumulates foreign objects like cat hair for instance, with use and over time. This can cause erratic behavior. A quick solution is to blow compressed air near the wheel zone to remove all the possible hidden dirt.

Deathadder V2 or V3 Wireless Not Working

Check the Mode Slider

Make sure that the mode slider under the mouse is set to either 2.4 or Bluetooth as shown in the picture below. If it’s set to the middle, the mouse is Off and won’t connect to your PC using wireless.

Mode Slider should be set to BT or 2.4

Ensure that your mouse battery is charged

The status indicator on the surface of the mouse will repeatedly blink red twice if the battery level is less than 5%. Once the battery dies however, it won’t blink.


In this post we have summarized the different reasons for which your Deathadder V2 Pro may not be working and solutions:

  • Check Battery Level
  • Re-install Synapse
  • Install the latest Windows Drivers
  • Set All Razer Services to Automatic
  • Clean the mouse
  • Reset Surface Calibration
  • Remove sources of Radio Frequency Interference
  • Adjust the Power Management Settings for the USB Controllers
  • Disable the Razer Game Scanner