Haven't n noticed much improvement except for the auto-brightness control, which now adjusts itself better in both low- and bright-lighting conditions. It was always too dim before the update.
I am, however, very disappointed that the signal drop problem has not been addressed. Multiple times each day I lose the signal and can't make calls our use data. Switching between 3G/4G is still very slow. This has aggravated me to the point of wanting to get rid of the phone.
On a minor note, but still annoying, I still have trouble connecting with Bluetooth devi es. About 50 percent of the time, the phone refuses to connect to any of my headsets