An overview of the Firmware versions for the Sevio Basic and One is provided below, including implemented features and bug fixes.

For the Firmware update procedure, please refer to the Update Sevio Router article.


Version 3.3.4

Date: September 2025
Models: Sevio Basic and One

Features

  • Automatic configuration for port 8080 to the concentrator in China.
  • New firewall rules for improved access blocking from WAN interfaces.
  • Firmware update.


Bug Fixes

  • Fixed remote access configurations.
Version 3.3.3

Date: October 2024
Models: Sevio Basic and One

Bug Fixes

  • Fixed IP forwarding bug on both WAN and LAN interfaces.
Version 3.3.2

Date: September 2024
Models: Sevio Basic and One

Features

  • Enabled communication on port 8080 for Sevio devices located in China.
  • Firmware update.


Bug Fixes

  • Improved tunnel dynamics.
  • Fixed connection configuration issues.
Version 3.3.1

Date: August 2024
Models: Sevio Basic and One

Features

  • Tunnel protocols to Sevio concentrators are now dynamically managed.


Bug Fixes

  • UMTS disabled via SIM module.
  • Enabled USB port power-reset every 10 seconds to prevent improper device connections.
Version 3.3.0

Date: July 2024
Models: Sevio Basic and One

Features

  • Basic: improved security for Wi-Fi connections.
  • Firmware update.


Bug Fixes

  • Corrected internal DNS resolution.
  • Improved packet-blocking mechanism for unauthorized traffic.
Version 3.2.0

Date: July 2023
Models: Sevio Basic and One

Features

  • Firmware update.


Bug Fixes

  • General bug fixes.
Version 3.1.4

Date: July 2022
Models: Sevio Basic and One

Bug Fixes

  • Fixed IP forwarding issue on networks with a DHCP server on the WAN.
Version 3.1.3

Date: June 2022
Models: Sevio Basic and One

Bug Fixes

  • Fixed IP forwarding issue for /16 subnets on the WAN interface.
Version 3.1.2

Date: December 2021
Models: Sevio Basic and One

Features

  • Introduced new direct communication protocols between Sevio Router and Sevio Portal.


Bug Fixes

  • Fixed issue reading USB drives.
Version 3.1.1

Date: July 2021
Model: Sevio Basic

Bug Fixes

  • Fixed LED blinking behavior.
  • Fixed buzzer function on Sevio Basic devices.
Version 3.1.0

Date: June 2021
Models: Sevio Basic e One

Features

  • Firmware update.


Bug Fixes

  • Improved internal NTP server.
Version 3.0.0

Date: June 2021
Models: Sevio Basic and One

Features

  • Optimized communication between internal and external devices.
  • Updated priorities for VPN connection protocols.
  • Improved outbound internet traffic routing.
  • Firmware update.
  • Added blinking of the status LED (i) during the update process.


Bug Fixes

  • Improved stability during profile updates.
  • Fixed bug reading USB drives with offline configuration.
  • Fixed issue related to the local proxy.