Xperia SP hanging problem

[Subrat_viper]

I am facing severe hanging problems in my xperia SP after the 4.3 update. Everytime i use the CLEAN MASTER app to clear the cache & temp files the display goes black, stops responding & the phone restarts after 10 mins. I have also installed the avast AV. Also the Asphalt 8 makes my cell quite slow & forces it to restart. Even using 2-3 apps at a time forces it to restart. Please assist me as my phone is just 1 month old & also advise whether to keep the avira AV & clean master, if not then how to clean the junk?

[Uliwooly]

stay away from those apps

taskillers

task managers

antivirus

ram apps

battery apps

boster apps

clean apps

cache apps

repair your phone with SUS if that doesn't work then stop by a a Sony Xperia Care center 

[Uliwooly]

Update Service (SUS)

PC Companion (PCC)

Bridge (for Mac)

Alternatives on How to backup Xperias

http://talk.sonymobile.com/thread/36355

[Uliwooly]

You can also reboot on safe mode, if the problem remain then do repair it with SUS or PCC

http://talk.sonymobile.com/t5/FAQ/How-to-boot-your-phone-into-safe-mode/m-p/348008#U348008

[Subrat_viper]

Thanx 2 u......will repair by SUS & get back to u.