: Look at the sticker on the bottom of your router for the hardware version (e.g., v3.0, v4.0, or v5.0). Step-by-Step Firmware Upgrade Guide
Tenda F3 wireless router (300Mbps) can be upgraded to improve security and performance through its web-based management interface . A notable update released in December 2021 specifically targets the V4.0 hardware version 1. Identify Your Hardware Version firmware upgrade tenda f3 2021