| phone bottom connector_1x12_mini
___________________________
/ 1 2 3 4 5 6 7 8 9 10 11 12\
-----------------------------
phone pin 1 ground connect to box pin 7 or 8
phone pin 6 tx connect to box pin 3 rx
phone pin 7 rx connect to box pin 2 tx
tested by me working 100% |