Xiaomi Mi Router 4A (MIR4A): OpenWrt Compatibility Report
The Xiaomi Mi Router 4A (MIR4A) runs OpenWrt 25.12.2 on the ramips/mt76x8 target, and has been supported since 19.07.0. Its WiFi 5 (AC) wireless on the mt76 driver rates fair for open-source driver support (0.65/1.0), installation is rated moderate, and we have no current US retail listing for it.
Hardware data and retail listings last checked .
Where to buy
We have no current retail listing for the Xiaomi Mi Router 4A (MIR4A), which is no longer sold new. See current alternatives for devices you can still buy today.
Specifications
| SoC | MediaTek MT7628DAN |
|---|---|
| CPU | 1 core @ 580 MHz |
| RAM | 64 MB |
| Flash | 16 MB |
| Ethernet ports | 3 |
| WiFi generation | WiFi 5 (AC) |
| Radios | 2.4GHz: b/g/n · 5GHz: a/n/ac |
| WLAN hardware | MediaTek MT7628DAN, MediaTek MT7612EN |
| WLAN driver | mt76 |
| OpenWrt target | ramips / mt76x8 |
| Package architecture | mipsel_24kc |
| Current release | 25.12.2 |
| Supported since | 19.07.0 |
| Install method | TFTP generic, Serial, see git-commit |
| Install difficulty | moderate |
| Power supply | 12 VDC, 1.0 A |
| Device type | Home router |
| Estimated throughput | 72 Mbps |
| Availability | not_available |
Installing OpenWrt on the Mi Router 4A (MIR4A)
Installation on this device is rated moderate. Expect to use a recovery mode, TFTP or a vendor tool rather than a plain web upload. Documented methods: TFTP generic, Serial, see git-commit.
Official OpenWrt device page for the Mi Router 4A (MIR4A)
Flashing third-party firmware can brick a router and usually voids the warranty. Always check that the firmware image matches your exact hardware version.
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