Problems and stuff with Xperia with facebook feature

[tutundziev]

here's the catch, when i had my phone on 4.1 the Xperia with Facebook feature worked flawlessly, syncing contacts photos calendar etc but now i decided to use it on 4.3 again and problems occured, first it's slow as **bleep**, second i can't access Contacts or messages normaly there's a 10 - 15 sec delay or apps don't respond, the phone heats up fast and the sync doesn't, how to say this stops it keeps going but it does nothing. First i thought it maybe because i have a lot a friends on facebook but then a friend of mine has the exact phone and firmware and he has more friends of facebook but he doesn't experience any lag of sort or problems it works flawlessly. These problems a accuring for the past few days. I've tried factory reset, phone repair force reset the phone clear cache etc even left the phone on wifi for about 12 hours ( i know alot of time ) still no hope more hickups and crashes. Can this be a faulty hardware or ? Any type of help would be greatly appreciated, thx in advance guys  

[Uliwooly]

Check this post

http://talk.sonymobile.com/t5/Xperia-SP/Xperia-SP-Freeze-Slow-and-Lag-after-the-4-3-update/m-p/59762...

[tutundziev]

Tried that as well it didn't work.... hope somebody else posts some experience or advice thxx anyway