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

https://www.huasifei.com/a/Products/WIFI6%20MESH%20Router/2021/0327/121.html

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Any update about the work?






I have receive this day ...

firmware chinese & english

serial port : 115 000

photos

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MXIC MX30LF1G189C
NANYA NT5CB128M16P-D1
MT7905DAN
MT7975DN
MT7621AT

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 : https://pastebin.com/1eTZeJUP

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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 https://github.com/x-wrt/x-wrt/commit/78dcaaace06e727dc0e1e6dc1b00e57a923c9a96

and these two commits for nand version https://github.com/x-wrt/x-wrt/commit/2f64a5eebe4419c78855658daf3691bb858f1d2b#diff-fee4d4f8f139c8a1c0e4b335ecc47982b3546365353b524e3e9dcc32583b3302
https://github.com/x-wrt/x-wrt/commit/0109ce687c41abf3e97cb3a05d57281e9b3e8264#diff-fee4d4f8f139c8a1c0e4b335ecc47982b3546365353b524e3e9dcc32583b3302

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
Computer 192.168.1.2
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(https://upgrade.wifi.sim.com/software) looks encrypted though

Same product: