Why can't Odin recognize the phone in system recovery?

If I boot the phone in system recovery, it doesn't detect the phone:

But when I boot the phone normally, Odin can detect it:

If I flash TWRP recovery anyway, the log is:

<ID:0/004> Odin engine v(ID:3.1005)..

<ID:0/004> File analysis..

<ID:0/004> SetupConnection..

and it's stuck there (which makes sense).

I have unlocked OEM and USB debugging. More Information:

• Odin version: 3


• Phone: Samsung J1-6 J120H