Hi tvai,
The oem-config is working on r32.4.2 SDCARD image on Nano.
- Using Etcher tool to flash r32.4.2 image on sdcard
- Plug-in micro-sd and power jack (J25) and micro-usb (J28) and jumper (J48) on Nano
- After power on the device, check host machine:
$sudo picocom -b 115200 /dev/ttyACM0
→ start oem-config setting.