Okay I have most of the issues that other have listed:
-battery performance less than 50% of what it was. Before I updated yesterday, I was plugging in the phone after a full day of use at about 70% to fill back up overnight. I actually took 2 days to run it completely down to 5% a couple of weeks ago. Today it is all the way down to 17% with the same usage. I haven't installed any apps and nothing has changed on this phone except the update to 4.1.2.
-Google now doesn't work properly and the settings won't come up and stay up to change anything on. Very sad.
-Scrolling between screens now and pulling up and exiting apps has become very choppy and sluggish in response. The beauty of the movement between screens is completely gone.
-They changed the camera. There is stuff that is just gone. Like the ability to turn the flash to auto. There are certain functions that came on the camera that just aren't there anymore...I AM VERY UPSET by this.
-I haven't tried my gps yet but I read some are having problems with it too....
DO NOT UPDATE YOUR PHONE TO THIS. The network is fast without LTE and I am so frustrated by these problems...and I was SO happy with the phone yesterday before the update...best phone I had ever had.
I am very displeased with this downgrade. So much so that I want to return to 4.1.1 and am finding that that is impossible. I am considering returning the phone now...so upset.
Can anyone tell me how to get back to 4.1.1???