Tenda_AC10_V15.03.05.16_EN.bin (AC10 model, v15.03.05.16, English version)

Article last updated: October 2026 – Covers Tenda firmware downgrade methods for both old (pre-2020) and modern (2023-2025) router models.

Before we dive into the process of downgrading Tenda firmware, it's essential to understand why you might want to do so. Here are some common reasons:

Downgrading firmware carries a risk of "bricking" your router—rendering it permanently unusable—if not done correctly. F3v3.0 Firmware V12.01.01.55 - Tenda Global(English)

However, Tenda, like many manufacturers, does not officially support downgrading. This means you must perform a . Follow this guide carefully—one wrong file can brick your router.

Downgrading Tenda firmware can be a straightforward process if done correctly. Remember to always backup your device settings and ensure you have the correct firmware version for your device model. If you're unsure about any part of the process, it's recommended to contact Tenda support for assistance.

Downgrading firmware on a Tenda router is a non-standard maintenance procedure typically performed to restore functionality lost in a newer update (e.g., Wi-Fi drops, UI lag, feature removal) or to regain compatibility with legacy devices. Unlike upgrading, downgrading is not supported by most vendor automatic tools and carries significant risks, including permanent device bricking. This report outlines the motivations, prerequisites, step-by-step methodology, and critical risk mitigation strategies for successfully downgrading Tenda firmware.

Some newer Tenda routers (e.g., Nova mesh systems) have anti-rollback protection.

Visit the Tenda section on forum.openwrt.org or Reddit’s r/homenetworking. Provide your exact model and both firmware versions for precise advice.