I took a picture and that fixed it for me, odd I know
Perhaps they changed how the light-sensor inside the droid works now? Maybe it needs a greater shift in light to activate the glowing keys now.
I mean everyone knows how goddamn hyperactive that little sensor was at times...
before the update, my physical keyboard lit up whenever i slid it out. also, the soft keys lit up if i was using them. if i was not using the soft keys, they dimmed. then, just as the screen was dimming (about five seconds before auto screen shut off), the soft keys would light up again.
since the update, the physical keyboard and the soft keys do not light up at all if i'm in a bright room, even with presses or sliding keyboard out. however, if i go into the dark, both the keyboard and the soft keys light up after about 2-3 seconds. also, the soft keys no longer light up when the screen dims in preparation for auto shut off.
i wonder if these changes were part of the battery saving features built into the update?
I'm no techi, but it seems to me that they changed the sensitivity with the update. This works on mine, try it out. Go into a bright room, pull the keyboard out. If your keyboard doesn't light up, take your finger and cover the camera lense (that's where the light sensor is, I'm pretty sure) give it about 2 seconds and the keyboard lights come on. Take your finger off the camera lense, wait a few seconds, the lights go off. It seems they changed the light sensity. Freaked me out too at first.
Okay, i'll throw my fix into the mix here.
I went to settings and adjusted the brightness control and then set the control back to what it was and voila! I had the keyboard back light once again. I go the recommendation from here:
From the URL above: This behavior is common with both OTA and manual update. Simply change your screen setting to something else and then back where yo uwant it and all will be OK again.