Update Xperia s , Problem for Wifi

[m_salehi]

i have a problem , when i update my Xperia S to Android JB but after that the wifi dosen't work & it cann't find any wireless device . helppppppppppp me please .,

if there is no way , how can remove this android version back to first version, i used reset factory but it dosen't work .

[zakirox]

i think your still lying on .200 version you have to wait for .211 already rolling out. flight mode can help you to use WiFi any how.