Internal HW2 SNES - How to use controller port detection

[kaduleite]

How to use controller port detection on SNES?
Wiki Information says

Option 1: Use existing system controller detection pin
Only for Wii extension based system like NES & SNES classic

How to use this system controller detection pin?

[kaduleite]

After studying a lot, I understand how controller port detection works and I implemented successfully in Dreamcast.
But with SNES it really does not work.

The blueretro is working fine, the issue is just the controller detection.

My configuration:

• SNES FAT
• ESP32 DEV Board
• Firmware HW2 v24.04 (tried with 1.92 - same problem)
• Controller port detection mode: switch button inside controller port (3v3 pull up resistor on IO35 and IO36)

Synthoms
I turn on the system and connect a bluetooth controller (I'm using a PS4 original controller). The controller works OK. If I plug a cabled controller the insertion is detected, controller led turns red, indicating that the controller corrected jumped to port 2, but the cable controller doesn't work at all.
The only way to use wired controllers is cutting ESP32 power.

Questions

1. Did I miss something?
2. Is it possible to use controller detection on SNES?