How to enable diagnostic Port Over Serial COM

I am using RAK4631, and I need to enable the diagnostic port for BG77 over Serial COM.

Please tell me the way to do that, as I am now only able to open AT port over it.

Hi @AmrAshraf ,

I am not sure if there is something like diagnostic port feature on BG77.

But if you need access on the USB. Maybe this post from @beegee is what you are looking for - How to connect directly to Rak5860 - #3 by beegee