Thanks! I just received the board. it's not shipped with a USB-UART and the default firmware cannot set WiFi WPA...what's kind of garbage!!!
The default WPA2 password of mt7602e-XXXX/mt7612e-XXXX is "12345678"...easy to guess.
I have tried three version of firmwares downloaded from mqmaker ftp, they are all garbage, either the WIFI has no WPA or LAN/WAN are dead. Just wondering why this shit company not shutdown yet?
After flashing the firmware I compiled, it is totally brick now. Just waiting for the USB-UART cable arriving to solve it.