Bad quality sound with the speakers

[Nanashi]

Hello everyone,

I've been using the z4 tablet for some days and the sound of the front speakers seems to be pretty bad. There's always a white noise when any sound is played, whether it is a notification, a video or music.

I've had the first tablet exchanged but the second one has exactly the same white noise problem. This does not occur with headphones, so I guess either Sony used bad quality speakers, which I doubt, or there's some software bug.

Anyone experiencing the same thing?

[Uliwooly]

@Nanashi

Which walkman/Music sound settings are you using?

[Nanashi]

I tried them all. Clear sound, manual edition of the balance, surround effect, etc... The white noise is still here.

[Uliwooly]

@Nanashi

are you near any TVs or speakers? does this happen with youtube or any other music app?

[Nanashi]

Even far from electronic devices, with YouTube, Sony music app, games and notification sounds. The first tablet I had before the exchange behaved the same way.

[Uliwooly]

@Nanashi

I'm sorry to hear this, you should contact your local Xperia Care.

http://support.sonymobile.com/global-en/contactUs/

Before you send it back or exchange it, you could

check if you experience the same issue while on safe mode

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

or reinstall the latest update with PCC 

PC Companion (PCC)

Bridge (for Mac)

Alternatives on How to backup Xperias

http://talk.sonymobile.com/thread/36355

[Nanashi]

Thanks for your help, I'll try this once I come back home.

[Uliwooly]

@Nanashi

Keep us updated. 

[Nanashi]

I will

[Nanashi]

I tried safe mode, it doesn't change anything. I couldn't reinstall the firmware, the pcc doesn't work. It says it can't connect to the server, and when I try to install the update module manually it keeps saying "invalid filesystem path missing"