Share your experience!
Hi
I am having trouble with the call volume when using the louspeaker.
Seems to only use 1 of the 2 speakers?
I have tweaked the all the setting including the equalizer which has improved the head phone volume but had no effect on the loudspeaker. When talking normaly the volume is ok but could also be louder
does anyone have any ideas
thanks
I hope this can be fixed with a software update 
The latest update for the phone, 23.0.1.A.5.77, has improvements for volume and sound. Please see http://support.sonymobile.com/global-en/xperiaz3compact/software/ for more information.
Yeah.. that update has been installed to my phone all the time..
But still the speakerphone volume is too low , as many of us has mentioned!
Please do something- fast.. update which have enhanced volume level for speakerphone also.
THANKS SONY,
BUT STILL VOLUME IS TOO LOW FOR LOUD SPEAKER AND PHONE CALLS
SEEMS LIKE I FINISH WITH SONY..
THANKS
+1 with low sound volume while using speaker. Love this phone but I think I will change it for samsung or xiaomi couse of this problem. Pls give us option to use bouth speakers while we are using speakerphone, better echo than not to hear caller at all 
And one advice, please make z4c with and witouth waterproof abbility, I dont need same, just need louder volume. Tnx for youre time!
+1
I have the same issue with my Z3C louspeaker on a call is useless cant hearwhat other person is saying.
I hope sony will listen to our problem and fix this problem in next update or otherwise I need to change my phone.