after bricking my router , i want to connect on the router serial port , but
i have not a serial/usb converter at home ,
well , i look in my electronique gadget box  and i find an old usb sim card reader/writer ,
i open it and see a PL2303HX chip ,

i look on the net to find the cpecifications and find this :

you can see the TX RX pins on the schema . (pin 1 and 5)

now juste soldering two wires and connect it on the router and all done , i have my
serial acces .