Help to define UART pins

Hi,

Some one give this Wifi AP to me to repair and reinstall firmware
already its bricked by installing wrong openwrt
can you please specify uart pins to connect serial console?

which pins are RX, TX, GND and VCC ?

also if anyone got any information about this board could be help to me
MODEL=G31W-L_V1.0

behind board:

--> Product ?

its a NoName device, no brand on front or back panels

one the underside... the four pins near the edge with the breakout circle pads ( near the center of the leds ) look promising...

multimeter on ohms to another ground @ 0ish ohm = ground

1 Like

see https://openwrt.org/docs/techref/hardware/port.serial#finding_serial_console

2 Likes