Xperia T - Not possible to turn on Wifi after Updating to Android 4.3
Yesterday I updated my Xperia T to Android 4.3 via Sony Companion Software. My phone is not rooted. Everything apperently went fine, but after the Update process I wanted to turn on my Wifi, but it did not work. I tried that from the quicksettings and form the settings directly. The button remain grey for a certain time and the turns back to off.
I turned off my phnone and on again, but a white triangle with a screw came and the phone remained in that status for more than 6 hours. After that it turned on, but the Wifi problem remains. Regarding Bluetooth, that works fine.
What I noticed is that when I check the phone info and the Wifii settings, no MAC Adress is listed there for Wifi. I don't think its a hardware problem, because everything was fine before updating.
What should I do? I am afraid to turn my phone off bcause it could go back to the white triangle remaining for several hours in that state. I dont think a factory reset would help, because there seems to be an update problem and I would like to rather not loose all my settings.
Any help would be very appreciated, because I urgently need wifi in my university.......