Hello,
the monitor mode is not supported on the nano pi neo air AP6212A wifi chip.
However, when looking in the web, it appears that the AP6212A uses the same internal chip as the rpi 3 namely the BCM43438A1. This chip does indeed support the monitor mode : https://github.com/seemoo-lab/nexmon
but the procedure to patch the kernel for this mode is only documented for the raspberry pi 3.
How do we apply those changes for the nano pi neo air?

Thanks in advance