upgrade 4.0

[SkillZat]

i updated my expria u to android 4 useing pc companion it open but the apps didnt work when i turned it down and open it agin i wont open .it keep on sony screen then xperia but dont open

help me plc i cant open it or do anything

[_alexdon_]

Retry the process using Sony update service.

http://www.sonymobile.com/global-en/tools/update-service/