Can't access WiFi

[Dollar1]

I've updated (Android 4.0.4) Xperia U, now I can not access the wifi.
I tried to restore the data to the factory but should not be ..
How can I do?

Topic and post edited by Rickard

[_alexdon_]

Please post in english.

[Dollar1]

I've updated (Android 4.0.4) Xperia U, now I can not access the wifi.
I tried to restore the data to the factory but should not be ..
How can I do?

[_alexdon_]

Repair phone software with sony update service.