[Q] WiFi and Lock Screen - 4.2.2 topic

Heyy guys. I am facing a lil problem at the moment.

After upgrading to 4.2.2 (Downloaded the Malaysia firmware from Sammobile and flashed it with Odin),

• My 'remembered' WiFi has been cleared and it has been my fourth time.


• My lock screen seems to have a 1-second lag as well. Sometimes, the lock screen is a little messed up - after a longer call (say 2 mins +), it shows my lock screen but couldn't unlock it.

Could it possibly be my CSC and such?
Any idea how to solve this issue?

Attached are my phone details.
Thanks!

Attached Thumbnails