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TIP: temporarily disable soft key back light when it is dark

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linux-howto

http://forum.xda-developers.com – I found out a way to temporarily disable back light on the soft keys on my non-rooted HOX. It kind of works most of the times and is active until you lock the device. First, download "Screen filter" from the Play store Activate the screen filter to your liking, I recommend putting a widget on your home screen and un-tick the "enable soft-key backlight" Now comes the extremely unscientific trick to get the soft key to be turned off, press the power key on your device to lock and unlock your device until it "forgets" to turn on the soft key back light! I (HowTos)