Last year, I broke the screen on my YI4K Action camera. I replaced the screen, but it isn't working correctly and I'm not able to see any display. I was able to modify the autoexec.ash to turn on wifi, but it's starting in 5ghz. My phone and tablet only use 2.4ghz so I'm not able to use the app to control the camera. Is there a command in autoexec.ash or system.pref. upload that will set the wifi channel?