Sound and sim

[Tio2]

My t2 ultra mode is set and horn audiculares phone does not ring, and I do not recognize the SIM card

[Phy]

Do you experience the same in safe mode?

How to boot on safe mode
http://talk.sonymobile.com/t5/FAQ/How-to-boot-your-phone-into-safe-mode/m-p/348008#U348008

How to boot on safe mode on Lolipop
1. press and hold the power key
2. once you get the pop up menu 
3. press and hold "power off" 
4. Boot on safe mode should become available

[Phy]

If you do repair it with Sony PC Companion.
http://support.sonymobile.com/gb/tools/pc-companion/