Razer Viper V4 Pro Failed Firmware Update (Dongle+Mouse) | Razer Insider
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Razer Viper V4 Pro Failed Firmware Update (Dongle+Mouse)

  • September 28, 2026
  • 0 replies
  • 26 views

Zentey

My New Viper V4 Pro dongle worked fine until a firmware update (dongle + mouse) via Synapse failed at 99%. Since then my PC doesn't detect the dongle at all: no Windows sound, nothing in Device Manager, and not even the BIOS sees it. I tried all USB ports, a hub, another cable, BIOS update, and reinstalled USB drivers and Synapse. The dongle does work on another PC, where the firmware shows up to date,  Any solution?