My dad's 930 has weird screen hue when pop up buttons like OK/Cancel appear on the screen. The home screen is perfect but in some cases the blacks come out a bit grey-purpley.
His 930 also developed an issue after about a week whereby calls would intermittently cut out; the other person could still hear him, but he'd stop hearing them.
A third issue began to develop where his proximity sensor would go haywire, so that mid-call, his screen would go black even if his phone isn't up against his head. The problem got so bad that the moment you dial a number the screen blacks out and there's no way to hang up the call without powering the device off and on.
He sent it for repairs; they changed the entire screen/digitizer. It was okay for a few days but he says the calls cutting out problem has crept back again.
Sorry but combined with the tap/touch problems on the 1520, and my brother's 920 playing up with spammed MMS messages daily (the guy only sent him ONE message, EVER), I am really disappointed with Nokia's unacceptable level of quality control lately. The fact the latest, green 1520 has the same problem is shocking. How could they have failed to fix that problem in the meantime? How come firmware can't fix the 930 problem? If not firmware, do latest batches fix the problem? ******* abysmal standards!