How do I turn on AP+STA mode (WIFI hotspot or Relay function) for BPI-R4?

Banana Pi
1

Reference:

R4 relay WIFI config
R4 relay WIFI config1053×716 136 KB

If you can’t find the WIFI name you want by scanning, you can enter it directly in Enable AP Mode:

R4 relay
R4 relay1005×374 35.2 KB