Orange Pi One PCB is designed to easy add almost all removed features from Orange Pi PC. Currently only RAM expansion is unprofitable.
To add 2 removed USB ports just solder wires to solder points as shown below on the photo:
Data lines for USB #3: points 1,2
Data lines for USB #2: points 3,4
Power can be taken directly from GPIO header or DC socket. OPiOne has no separate voltage regulators for USB ports like previous boards used to have.
This way I want to solder mini WiFi dongle (after removing the case and USB port) directly to the PCB.
not sure if you figured it out over the years but one thing that you need to do is run alsamixer, hit F4 then on mic 1 press space to enable it. took me a while also. this was for the orangepi prime and then you can record with arecord
