Xperia M2 audio bug

[Luis313]

Good morning/evening/night i have this phone since 06 january and when my carrier gave the 4.4.4 update came with a bug...after investigating it this bug comes from apr 2014 since Xperia Z release in 4.4, the problem here is the audio everything comes from the internal speaker instead of the big speaker that is down, i used to restart the phone to eliminate this bug but then it appears and appears again, reinstalled the software with Sony's pc companion and the bug it's still there, ¿does anyone knows how to eliminate it?

phone is updated 4.4.4

firmware: 18.3.1.c.0.21 

[Phy]

contact Sony Xperia Support because that seems to be a hardware issue.
http://support.sonymobile.com/global-en/contactUs/

[Luis313]

May be, yes ,but it's not sir, i plugged the headphones and unplugged them while playing music and the speaker started working, it's a bug from the system i guess, never happened with 4.3 neither with 4.4.2 it came with the 4.4.4 update, right now it's working but it will appear again, this needs to get patched back if i take it to my carrier to verfy that they're going to give me another M2 with the same problem, won't solve it completely.

[Phy]

Boot on safe mode and use your phone like that when it starts acting up. If you don't experience the same thing in safemode the issue can be due to a third party app.
http://talk.sonymobile.com/t5/FAQ/How-to-boot-your-phone-into-safe-mode/m-p/348008#U348008

[Luis313]

all the apps that i have installed in 4.4.4 came since 4.3 to 4.4.2 to 4.4.4 ,never caused this problem until 4.4.4 the problem comes with all the apps once it happens.

[Uliwooly]

You have to contact your local Xperia care regarding this issue or you can bootof same mode as suggested above by @Phy

Keep in mind that this forum is for us, users, to help each other.

[Luis313]

i'd like to make his option but i don't know when the bug is going to happen and if i restart the phone might work or might not work and test it, it's like a surprise, won't be able to chekc that option cuz i won't know if it will work the audio or not, can't predict when is going to fail to test it.

[Uliwooly]

When it does happen take it to your local Xperia care center, also contact them if you believe it's a bug.