Well guys, my problem came back.

Bare with me while explain in details.

Only happens with whatsapp (or maybe other messaging app).
When one message comes in, no notification sound can be heard, only when the 2nd message onward, the notification sound starts to come.
But that also wasn't the case. Sometimes no sound at all even multiple messages coming in.

I've to restart the phone in order for it to work properly.
I'm out of ideas already. To say the speakers not working, it works brilliantly! Very nice sound.
Tried reinstall whatsapp, but to no success.
Should i factory reset? I hoped to avoid this, but if there's no other solution, i might do it.
   

I have this issue since my Xperia S.
But usually the 2nd message come in will fix the problem.

I was thinking it is android issue, but didn't annoy me much because i will check the phone when i free.

Yeah. I know about that. But this is individual contact.
It's working normal now but when i turn the volume all the way down or put the phone in vibrate mode only, then i turn the volume back up, that's when the problem comes back.
I couldn't find the option in the app.

Currently how much is Z3?
Planning to buy one

Currently how much is Z3?
Planning to buy one

You have to go into whatsapp first. And click on its settings.

Currently how much is Z3?
Planning to buy one

Currently in Ipoh:

Sony Centre 2399 with free gift.

Phone shop 2129 lowest i can found.

2129 with free gift or not ?
2399 dono raymond give what

i bouhgt mine from raymondtong94 he gave me a case and tempered glass sp. currently buy from his outlet will have 1+1 year warranty from sony msia.

Ohh...  interesting.. got noise canceling ? I hear him saying he will bundle it together until further notice.

My Z3 dropped face down from table height today... OUCH!

2129 with free gift or not ?
2399 dono raymond give what

SO SAD !!! sent my z3 to service center for 3 weeks T_T  bloody hell still no spare parts arrived after so long....

My Z3 dropped face down from table height today... OUCH!