M4 screen not working?

[Charlie1234]

Hey, pretty much my phone screen has just gone blank. it still charges and the LED still works but the screen wont turn on so i can use it. I can sometimes get a back light but the screen would still be black and it seems like i can still use it as i tried putting my password in to see if that would make the screen light up back to normal. it didnt work but it still vibrated when i did it like normal so i really dont know whats wrong with it. Any help/advice appreciated

[MarlonUk1]

try doing a software repair using Xperia Companion,, you will likely lose your data on the phone though