wifi problem

[Musa1]

i am using xperia acro S suddenly one day i was using my wifi stopped working it keeps on coming that wifi is turning on. i have tried restarting my phone nothing happened i have also made a factory reset but the problem still persist

[Alexander1]

Sounds strange. I suggest that you first of all try to repair the phone software using PC Companion: 

http://www.sonymobile.com/update

In PC Companion, press start on Support Zone > Start on Update the phones software > Press the blue link that says "Repair phone".

If the problem still persist, I suggest that you have your phone examined at a service center. Please contact your local Xperia support team for more information: 

http://www.sonymobile.com/global-en/support/contact-us/