Sure sure... Put some effort and read the thread. It's not working because PIN 10 is Flow Control used in Serial communication when JoyCon is placed in rail and act as a handheld mode. When you ground PIN 10 Flow Control basically doesn't work, hence JoyCon cannot be detected in Serial. It only charges from rail and work over bluetooth. -
@kombos
And if you read the thread you will figure out that I didn't used PIN 9 but PIN 10 & 1 using 2 position switch and solid soldering skills.
Basically it work as expected, when I pull switch open everything works fine, when I pull switch closed it's grounded and doesn't work in handheld.
Actually I'm going to say that if there is someone who have different behavior fucked up something.