Viper V3 Pro mouse not connecting or charging. | Razer Insider
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Question

Viper V3 Pro mouse not connecting or charging.

  • May 12, 2025
  • 1 reply
  • 42 views
techplaceHalay231

Hi,

I have been trying to get my mouse to connect to my PC all night but it's not working.

The dongle makes a connection noise when plugged in but doesn't connect and when I plug the mouse in directly, there is no connection sound. I have tried holding the power button but nothing changes. The red light inside the mouse is blinking from a dim red to a bright red. 

The synapse app also does not recognise the mouse, but had no problem finding the dongle and checking it for firmware updates. 

I have also tried holding the left and right mouse button before connecting, but I never get a flash to indicate the mouse has reset.

I've only had this mouse for over a month. :(

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1 Reply

Razer.Aero
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  • Razer.AeroRazer Support
  • Razer Support
  • 3394 replies
  • May 15, 2025

Hello techplaceHalay231,

I’m here to help! I understand you're having connection issues with your Razer Viper V3 Pro. To isolate the problem, please do the steops below:
1. Ensure you are using the original cable that came with the mouse.
2. Fully insert the cable into the USB-C port until you feel a "click" to ensure a secure connection.
3. If the red light is blinking, this may indicate a low battery. Ensure the mouse is getting power when connected directly.
4. Try different USB ports or a different power source.
5. Test the mouse on different computer and check if the issue perisist.

Feel free to PM me with your mouse's serial number and proof of purchase so I can validate the warranty and assist you further. All the best!

*Thread locked to curb conversation to PM.

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