Can't Turn On Wifi on Galaxy S3?

i also have the same problem on my S4, basically the wifi wont turn on, i already did flashing firmware, wipe cache and dalvik cache but still the same thing :(
 
You just need to update the phone through Kies samsung software. Because it is an official software to update your samsung device.
 
i'm having the same prob...the wifi keeps saying "turning on...." but will not turn on....it was working fine this morning until ma battery died and the phone shut off on its own. plllllllllllllz help. how do i reflash? would this work? :'( :'( :'( :'( :'( :'( :'(
 
Hi I am having the same problem with my WiFi as the person that asked the original question. Id really like to solve the problem in this way but I don't know how to reflash my phone? Could you please give an easy run through of how to do this? Thank you
 
Hello, I'm also having this issue. Was on Omega 4.1.2 jelly bean rom when the wifi stopped working. I flashed an omega aokp milestone jelly bean 4.2.2 using mobile odin pro but the wifi still won't turn on! Somebody help.
 
I also got this problem, and my girlfriend as well.

I have a Samsung Galaxy S3 with Cyanogenmod. I updated using the cyanogen updater, kind of OTA method. In my case I can fix it by turning flight mode on and off. I tried deleting the cache partition, the dalvik cache, etc. Keeps failing.

The funny thing is that my girlfriend, with the Nexus 4, has the same problem since she updated over-the-air when she got the notification about a new version (4.3) for Nexus.
The only thing in common, we both come from a rooted version.
 
Hey, i restored my Wifi preferences using a previous backup i did in Samsung Kies, and the problem was solved.

Hope that helps!
 
my note 2 has the same problem. please help me

my galaxy note 2 has the same problem. please help me. my phone is not rooted
 
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i really need help.. i have a samsung galaxy note 2 and i cant turn on my wi fi as well...i didnt update it at all or anything i just cant connect. when i try it just freezes for a few seconds and nothing!!!! HELP!!
 
hi friend,
please i really need help, i want to update from s3 gt-19300 from 4.2,2 to v4.4.
i need all d software for the update and tutorial of step by step so that i will not do any mistake.
i hope i will helping hands here.
thks