Last night, I tried AGAIN to move forward and update. The latest update was 4.3. Unfortunately 4.4 has not yet been released and even if it was it is likely to come with bugs until an update or two rectifies any issues.
Now, these are some problems/bugs experienced with 4.3:
1 - Camera is now laggy whereas on 4.2 is was silky smooth. Only improvements I see on the latest update is a decrease in both noise/iso sensitivity as well as many other various camera effects.
Focusing takes far longer than before.
2 - Sound Settings keeps force closing in the 4.3 update. I'm not able to access or change the xLoud setting. I've cleared data, cache and even re-flashed. Keeps crashing. Downgrading to 4.2 solved this issue. Sound is LOUDER and xLoud works as it should.
3 - Screen - There is a slight delay when finishing from a call. It takes a few seconds for the proximity sensor to wake the screen to end the call. On 4.2 it is instant.
4 - Performance issue. 4.2 was smooth, fluid and instant. 4.3 feels heavier and not as quick as it previously was.
Therefore, with the above issues, I've had no choice but to downgrade. There were more advantages in 4.2 than in 4.3 which had issues, unfortunately.
I hope these problems are solved in the upcoming 4.4 Kitkat. Could other users share any problems caused by the latest updates? Was the stock 4.2 rom any better?