OpenWrt on this WiFi 6 MT7621A device

Found this device and i wonder if OpenWRT could be installed.

Spec Summary

  • 16MB / 256MB
  • CPU/WLAN - MT7621A / MT7905DAN+MT7975DN
  • 2.4G + 5.8G WiFi 2x2 802.11a/b/g/n/ac/ax
  • MU-MIMO/MU-OFDMA uplink/downlink
  • 4 x 1Gb Ethernet (1 WAN+3 LAN)

*No USB ports

Price as of this writing $45.75

What would need to be done in order to install OpenWRT on this piece?

A serial connection to start with :slight_smile:

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Chances are pretty high, but you might need to send one to a developer with the necessary skill and interest to port it (although often it seems enough if you can provide serial output etc. and test images).

I ordered two, we'll see ...

If has a 8 pins SPI that is easy to replace by a 32 or 64 Mo flash

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Any update about the work?

I have receive this day ...

firmware chinese & english

serial port : 115 000


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exist a footprint for a SPI Flash with 8 Pin's

web login admin

WIF SSID : AX1800-XXXX ( 4 last MAC values ) Key: 9876543210

serial port ok

boot :

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anyone interested, if you want to add support in OpenWrt
you can probably copy the recent commit from x-wrt here for the nor version

and these two commits for nand version

does not do anything strange, adds device tree file and changes usual configs for ports and generating image.

Recovery is easy :

Serial adapter:

Tftp64 by Ph.Jounin
With serial port : key 2 , enter, enter, enter

file name in tftp64 folder: TB-WR1800K-MT7621-CPE-WR1800K-V1.0-202012052102-UploadBrush-bin.img

the file is original mtd4.bin save before and rename


If anybody is looking for the firmware( looks encrypted though

Same product:

Seems the same to this one I bought: