Android/Screenshots

Android has a key combination for screenshots; press the hard volume down and power buttons at the same time, and hold them for a second. But it does work on current XO-4 build.

As a alternative there is a binary which can do the some thing via adb shell

adb disconnect && adb connect 192.168.XXX.XXX
adb shell screencap -p /sdcard/screen.png
adb pull /sdcard/screen.png
gimp screen.png