Problems after update (Lollipop 5.1.1)

[Zoi]

I´ve got some problems with my Xperia Z1 Compact after the upgrade to Lollipop 5.1.1.

* Camera

When I launch the camera, the screen is only black and after a while I get the message "Camera doesn´t respond / Kameran är inte tillgänglig"

The flashlight doesn´t work ether.

The only way to use it, is to restart the phone and use it once, then it won´t work again.

* Calls

When someone calls me and I don´t answer, I still have a notification about an incoming call next to the missed call.

Earlier I couldn´t hang up or have any information about an ongoing call, now it´s only the notification.

* Alarms

The alarm crashes after about 10 seconds.

How can these problems be fixed? Will there be an update or something?

Edit:

The solution for my camera was to clear data & cache for the apps Camera & Cameras.

The solution for alarm and calls (that actually was about repeating a selected ringtone/melody) was to Disable use of AwesomePlayer under Development tools in Settings.

[fah51]

@uliwooly

Thank you, I had thought of that but in fact I found a solution to the problem.  All I needed to do was uncheck Delivery Report in settings and all is back to normal.

[Sorien]

it's my last sony phone, never more, after last update phone do not ring i've missed important calls from customers who are really getting angry about our services, thanks sony, good job 

[CarloDallaLiber]

Hello, i have a problem to update my sony z1 compact to lollipop 5.1. The result it's alwasys the same ... error 302 and i really don't know why. does someone help me? what's going wrong? tks

[traveller_cz]

Do not update - keep the 4.4.4 - this is by far the most stable system.