password to decrypt storage

[resolution]

good mornig 

today mornig i take  my sony xpria m2 and i use normally suddenly my phone going to ask type a passwrd to decrypt storage  ihave  tried to solve this broblem and all are going to fail plz help to resolve to nthis problem.

and my phone going to sfe mode when i triying to power on+ volm down 

now my mobike is sahfe mode 

plz tell solution for for both my problems i am waiting for your reply 

      "I HOPE YOU MY DEAR SONY"

[ChloeS]

Hi @resolution

Welcome to the community! 

You will need to perform a software repair using Xperia Companion. 

If you find you still have this issue after completing the above steps, get in contact with your Local support to see if they can assist you with getting your handset across to a service centre for repair. 

If you have any further questions let me know