Strangely enough after the upgrade my center channel seems to be working correctly now. Much better base in the voices. Can't say much for the surrounds as they are still quite. Although i did hear a hint of them during Game Of Thrones last night (which i would never hear them in the past).
I'll be spending the next couple of days evaluating and report back.
I just checked and I am also already on 3114.2 my surrounds still work perfectly though. Just out of curiosity I checked the Samsung website and 3114.2 was definitely only released yesterday so I'm not sure when my system updated as I have always had to manually update previously. I have checked my volume which is now 0 to 100 and it is louder at lower volumes than before. I can still change source and adjust sub volume so I haven't lost that functionality as someone e else has. It's all very strange
Just to confirm I am on the latest firmware and my system is still working well. Cant see any changes except that the volume is now 0 to 100. Have you updated Robbie? Some seem to be saying the volume on their rear speakers has gone but mine is still good.
Not in UK until 22nd so can't test or see if mine has updated.
I have dropped an email to samsung stating some reporting issues with rears and volume control reduction in capability and got below response.........
Make sure you try a factory reset on everything before giving up (if you haven't already). TV may need to be reset as well and make sure everything is on same Wi-Fi, etc. You never know.