Speakerphone call very low

[agwindover]

This phone is a great phone, but it has a great bug for me

When I enable the speakerphone, audio volume is very low (its is at max level) Can I increase this volume? Or will there be updates for improve audio cabability?

[Kasi23]

I have the same issue... I hope there is a solution for this? 

[Swedbear]

Same issue here,  tryed all, volume on high, all volume settings on max, started in safe mode makes no difference. Speakers turn almost off when I switch to speakerphone but works fine on normal and earphone. Android 7.1.1 

[agwindover]

In my opinion solution is very simple. With new updates or firmware, sony should enable both speakers for call. Now only the bottom speaker is enabled. 

 I hope that it will be fixed 

[Panky-Wakao]

I have the same problem.

My Xperia XZs speaker volume is too low to hear.

Is there any update to fix this problem?

Regards