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Published Date: 2023 Feb 23

To install a new firmware version on a base station and/or handset, please follow the instructions provided in the firmware update guide.


  • Version <= 480BXX can only be upgraded via http locally. Snom download server supports only https!
  • After upgrading to version 450BXX or higher the rollback to 410BXX or previous versions is not possible.
  • After uprading to version 530B9  you need to update all M5 Repeaters to use V530B2 . >V610 firmwares do not support M5.
  • Please read the release notes carefully before upgrading.
  • Please reboot the base station(s) (chain reboot in multi cells) before triggering the upgrade, to free up some memory and avoid any issues.

How to Update a DECT Device

  • Firmware update server address:
  • Required version: 530 (for the base M900, M700, M300)
  • Required version: 530 (for the handsets M25, M65, M70, M80, M85, M90)
  • Required version: 531  (for the handsets M30)
  • Required version: 530 (for the headset A190)
  • Required branch: 10 (for the base M900, M700, M300)
  • Required branch: 10 (for the handsets M25, M65, M70, M80, M85, M90)
  • Required branch: 10 (for the handsets M30)
  • Required branch: 02  (for the headset A190)

Binaries download

  • M900 SHA-256: b2337b492341ef1c4f33b92abfb55a773db5d48ae904ef4dcfcd09d0cbaffdec
  • M90 SHA-256: ea8fe7bd33f2d3331dd8616de3efa5c1c7168472888c38fa6e16d12bb77f2a1f
  • M85 SHA-256: ac9f7ad9ea742117886f8614db7e16813f75e956a93b80898df6a02c1e9dbf9d
  • M80 SHA-256: f13955eb73092935e5487a4a12f305e8397f36027ad46c903a99fb8db11473fd
  • M700 SHA-256: 871679bce6719ceea859064dccb96faacd3d2a6a7536e73844e91f9dd418c46a
  • M70 SHA-256: a226faf724d54d2c75410a1c4f0fea22f542523f5efdec80abe36922e68dd6cb
  • M65 SHA-256: 997551fc100a7eda6dae08fcd2293d7aa83e403bd432dcbefb806223bc896c38
  • M300 SHA-256: 388613667c7a6ad294cf1db0c4f7a9859be165ae0ef95baa5b0a02390308c633
  • M30 SHA-256: 4ed4069c7e0ed6a945222ac18cbd44219b62b499a4587bb592b15f0efd78f434
  • M25 SHA-256: 2c4019c7f1cf5b306adb014bdad2f138c530de2dbb2cfff002dd133a10eeb423