I have MQMaker Witi board, not sure which revision it is... on the board it says "MQ-V2.0-20150706" and it has 256MB of ram.
I tried (by mistake) flashing it with 512MB firmware version and that of course didn't work.
Wi-Fi works only with LEDE 17.01 firmware but with OpenWrt 18.06.4 it boots but doesn't show any wifi radios detected.
Also both versions fail to setup /overlay partition so I see 0 free space and no way to make uci / luci changes permanent or to install any package.
Also it doesn't help that MQMaker website has gone down, AFAIK MQMaker company has shutdown.
Does anyone have a working firmware that I could flash my board with? Probably their official firmware, right?