Razer Seiren Mini - Unknown USB Device (Device Descriptor Request Failed) | Razer Insider
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Razer Seiren Mini - Unknown USB Device (Device Descriptor Request Failed)

  • October 8, 2025
  • 1 reply
  • 67 views

Hi, my Razer Seiren Mini suddenly stopped being recognized by Windows.
It shows “Unknown USB Device (device descriptor request failed)” and doesn’t appear in Synapse.
I already tried all troubleshooting steps (different USB ports, USBDeview cleanup, services restart, etc.).
I noticed the firmware updater link on your support site is broken.
Could you please provide me with the firmware recovery tool or a working updater link?
Thank you.

This topic has been closed for replies.

1 Reply

Razer.ScarletRouge

Hey there, ​@bitCyclamentalk560 

Thank you for sharing your concern here regarding your Razer Seiren Mini. Please send me a PM together with your device’s serial number so I can check its details here in our system and assist you further. Also, please send me the error message that you receive that says “Unknown USB Device (Device Descriptor Request Failed)”. Lastly, please let me know your current Synapse version so I can properly isolate the issue. Thank you!


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