mobile

Hello
I tried updating using Sony PC Companion application after it had finished, i turned it on and waited for the upgrading processes it took a long time and my phone's back became hot *really hot* then after it had finished upgrading it stuck with a blank screen and didn't take me to the home screen i can go to the camera if i pressed the capturing button , i can turn it off/restart it take screenshots or record the screen but i cannot go to the home screen and access other applications i can't even go to settings or notifications all i can see is the notifications and the back button i can't click at notifications and i cannot enter a pattern/password this so hopeless
sometimes it shows me the message * InitialBootSetup isn't responding * but even though nothing changes it stays at the same way :(
infos you might need
My phone is not rooted , it doesn't have a sim card/sd card, usb debugging is disabled and it was locked with pattern lock before upgrading
i tried using android device manager changed the password but still no big changes just got the ability to access emergency calls
the worse thing is that i didn't back it up before upgrading :crying: