Router

YunCore AX820

Projects for this device

Replacement firmware

OpenWrt

Replace router software with a customizable system for network controls and community packages.

How to get started

Follow the guide for your exact router version. The first installation may use its web interface, recovery mode or a serial connection.

Setup: Firmware replacement; route varies by router
You’ll need: Exact hardware revision, an appropriate OpenWrt release and its model-specific installation guide.

MediaTek MT7621DAT: Get OpenWrt firmware Release listed · 25.12.6
MediaTek MT7621AT; MediaTek MT7621DAT: Open hardware record Release listed · 25.12.5

Original project github.com

Recorded configuration: 16 MB flash; 256 MB RAM

First installation: GUI OEM

Sources

Features & details

Check the project and hardware shown for each feature.

OpenWrt · MediaTek MT7621DAT

OpenWrt · MediaTek MT7621DAT — Source documentation (openwrt.org)

Installation routes recorded: GUI OEM
Recovery routes recorded: U-Boot web recovery
Availability recorded by source: Available 2022

Hardware details

Documented hardware

yuncore ax820 — device documentation (github.com)YunCore AX820 — TechInfoDepot (github.com)Documented hardware — Source documentation (openwrt.org)

Processor: MediaTek MT7621AT
Processor: MediaTek MT7621DAT
Wi-Fi chip: MediaTek MT7905DAN
Wi-Fi chip: MediaTek MT7975DN
Flash: 16 MB
Processor: MediaTek MT7621DAT
Memory: 256 MB
Wi-Fi chip: MediaTek MT7905DAN

Security

Saved scan 18 Oct 2026

No device-specific advisory matched our saved CVE research.

Check security advisories for this device · CVE.org