Share your experience!
Whenever I try to send a voice message on Facebook Messenger, it will record, but after that it will freeze and when i try to record it again and it wont send. It just says 'Unable to record audio', and my microphone would stop working for my entire phone until i restart it. Can anbody help?
Try to clear data for facebook in settings-apps-all.
Still the same 
Do you have skype also?It might be related to another app using the mic.Maybe chrome.
Havent installed Skype or any other kind of microphone app. I can record my voice using voice recorder etc
Boot the phone in safe mode,see if the same occurs:
http://talk.sonymobile.com/t5/FAQ/How-to-boot-your-phone-into-safe-mode/m-p/348008
Can't seem to find Facebook messenger in safe mode
It seems it is seen as 3rd party app.You should contact the developers.And also xperia care:
http://www.sonymobile.com/global-en/support/contact-us/
I contacted Sony a couple of days ago with still no reply. But i will try and get hold of Facebook. Cheers for the help!
Yeah,keep us updated.You should also take a look here:
http://talk.sonymobile.com/t5/Xperia-Z-ZL-ZR/Xperia-Z-cant-record-voice-messages/td-p/545377
The same issue.