Share your experience!
Hi!
the wait has been worth it. Sony has worked hard to show their work.
You notice a big change, especially regarding fluency device.
The only bug I've noticed, and large, is that every time I turn on my phone, I have to manually select my coverage. search mode is automatic, therefore, that is not a problem, and the problem is obviously in this version.
For me it's no trouble every time you turn the phone, manually select my coverage, but for some users, maybe it is. anyone have this problem? or other?
I hope it gets fixed, thank you very much.
Solved! Go to Solution.
settings > more > mobile networks > access point names > menu > add new > enter your network info > menu > save
that should fix the issue
ok, thanks, but, this is for APN. The problem I have, that I had not before, is: I have to go to settings> more> mobile networks> network operators> search networks and select my operator .. 😕 every time I turn on the phone 😕
thank you 
just give it a shot, try my suggestion.
Hello,
I don't have this problem. My usual operator is automatically selected.
tested, and it works. I finally went to setting> xperia> internet settings, and have downloaded the APN settings for internet and MMS, and it worked.
Thank you very much again
mine too, but it was just a mistake by passing configuration jelly bean =D
anytime
I am facing issue with my call list scroll log after updating to JB. After scrolling about mid-way into the list, it automatically goes back up to the first entries. I have to keep scrolling down again and again to acess the older call list. Very annoying.
Also, I restored everything from the backup and restore app. While all my apps were restored successfully, I assumed that the contacts list will be updated automatically. I deleted the backup file, but realised that the contact list had to be extracted manually. I now have only 70% of my contacts (which were backed up during the last month). 
Do not rely on the stock back up and restore app its buggy.
Do a backup using pcc henceforth its almost foolproof.
For contacts do a manual backup into ur internal sd. and try clear cahe and clear data for the scroll issue.