Quick guide to turn off the LCD screen of your Sony a6100 when you have an Micro HDMI Type D plugged into the camera. Since the a6100 is part of the new line of a6xxx series, I'm sure this will work for the a6400 and a6600 also. I've tested it with the HDMI cable plugged in and it works. It doesn't switch over to the EVF.
![](https://i.ytimg.com/vi/gsV2HiW0Lvo/maxresdefault.jpg)