Camera

[asdfgh]

I think my phone works good but Sony camera doesn't open all day due to this message (Xperia needs to cool down please wait ) some time I leave mobile 6h but still this message appear when open cam.
Second my phone charge very slowly 60 % approximate equal 5 h

[Uliwooly]

@asdfgh

You already asked a similar question before

http://talk.sonymobile.com/t5/Xperia-Z1-Compact/problem-in-heat/m-p/991899#M15997

The longer you use the phone the hotter it will get and the camera wont' work, there's not way around this. 

[asdfgh]

But now I told I leave it around 6 h but still this message appear

[Uliwooly]

@asdfgh

Are you using the phone while charging? playing games? perhaps you have apps that are constantly running, keeping the phone hot.

[asdfgh]

Not using it while charging
But constantly running app I want to know more about it

[Uliwooly]

@asdfgh

Simple, boot on safe mode for few hours 

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

check if the battery drains as fast, also see if it takes as long to charge the phone, another thing to check, do you keep wifi on aat all time?

[asdfgh]

Yes I do

[Uliwooly]

@asdfgh

Boot on safe mode for few hours and reply back, WiFi will drain your battery faster

Settings > power management > battery > check the graph and also the top 5 items on the list, how long have they be running? (hours, minutes) post the screenshots here. 

[asdfgh]

I try in safe mode the same problems appear
5h for charge from 13 to 43 %
Camera doesn't work

[Samuel1]

I suggest that you try to repair the phone software using PC Companion..

Before repairing your device you may want to backup your information first. Check out this topic for more information on how to.
How to backup?

If the issue should still remain I think that this needs to be examined and fixed at a repair center. For more information about how to submit your phone for repair and where, contact your local support team.