[jocala]

With  FireOS8 the sleep settings are changed. Unfortunately, the current timer dialog does not work for  the 4KMax stick.  To turn sleep on/off use a workaround from below:

Connect to the device then press the ADB Shell button. At the prompt paste in a command from below:

Sleep off:

Code:

 karat:/ $ settings put global stay_on_while_plugged_in 1

Sleep on:

Code:

karat:/ $ settings put global stay_on_while_plugged_in 0

This will be added to the timers screen in the next release.