Deathadder V4 Pro Dongle stopped working randomly | Razer Insider
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Question

Deathadder V4 Pro Dongle stopped working randomly

  • June 21, 2026
  • 1 reply
  • 89 views

Roughly 2 nights ago I unplugged my dongle so I could charge my mouse, as it was on low battery. I allowed it to get to 100% then when I plugged the dongle back in it showed no signs of life at all. The mouse works perfectly fine when It is connected via cable and is registered on synapse. But as soon as the dongle is connected it comes up as device is in sleep mode, turned off, or needs to be connected via 2.4 GHz. I have tried every fix to the issue I could find online and nothing has worked. Here is what I have tried:

  • Disconnecting and reconnecting the dongle to different USB ports

  • Holding the power button for 10+ seconds and nothing

  • Testing the dongle on another PC (Nothing)

  • Restarting the system multiple times

  • Reinstalling USB and mouse drivers

  • Uninstalling and reinstalling the mouse software

  • Using the mouse pairing utility

Any and all help would be appreciated with this as I will continue to use it wired for now but Wireless is much more preferred. Thank you In advance for the support. 

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1 Reply

Razer.ScarletRouge
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Hey there, ​@Im_in_YourWalls 

I understand that your mouse works perfectly when connected via cable, but after unplugging and reconnecting the dongle, it no longer responds wirelessly. 

To help me investigate this further, please send me a private message along with the device’s serial number and a video demonstrating the issue, specifically showing how the device goes into sleep mode when connected via the dongle. You can upload the video using this link and then send me a PM with the link once it’s uploaded. Thank you!


 

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