I used the one from github link shared before - dq08_ha_supervised_3.0.0_r2.img
But wifi, bt and remote controler are not working afterwards. USBs seem to work fine - screenshots from HomeAssistant.
I have 3 of those LinknLink iSG boxes. First one went perfect, second one was flashing there and back, eventually got it working. 3rd one is still giving me troubles 🤷♂️😅