Warning! Do this at your own risk! All your phone data (contacts,photos,videos,music,messages,a plications,games,files,) will be lost! Please make backup first if you can!
1.Open Sony Pc Companion2.Click on "Phone /Tablet Software Update"
3.Click on "Repair my phone/tablet"
4.Select Sony Xperia E1
5.Power off your phone
6.Connect microUSB cable to your computer
7.Press volume down and connect your phone to microUSB cable when software ask
8.Wait until update is complete
9.Disconnect your phone from cable and power on
10.Wait until phone restarts
That's it!
download file : http://bit.ly/1U8JCta