Is anybody ever worked with the 10P USB adapter for the PWM control and video out?
I have this remote control av cable: https://www.banggood.com/Remote-Control-AV-Cable-for-Hawkeye-Firefly-8-8s-8SE-Action-Camera-p-1170438.html
Video out is good. And taking photos with PWM signal is OK. It works on 2000us of PWM signal. On PWM within 1500us is "off". But... It should start video recording at 1000us, and here is the problem - the cam never goes into the video recording mode. I tried range from 500-1200us but without success.

Anybody has same problem? Any firmware tweak exists for this maybe?