External speaker is contained within the dock, you can try what Andrea suggests as the left lower part near home button is over the speaker connection. Otherwise you'll need to replace the dock.

I had exactly the same proble, tried updating, master reset etc. but still only mananged to get sound through headphones or music music dock. Volume up and down buttons did nothing too. The problem wasn't software related at all but infact a simple fix. The headphone output was dirty and was making the phone think there was still an input there (volume buttons still didn't work though). I'd read that someone fixed this by repeatedly inserting and removing their headphones but I managed to fix it with a high pressure air line at work. Happy happy now!

Hi

I had similar problems and what i found is that the bottom charging slot where the usb cable attaches to the Iphone had a buildup of dust and stuff from being in my pocket. All I did was gently scrape this dust out with the edge of a folded piece of paper and it worked again.

Hope this helps

Rob

I did the same thing, with a small needle I took out all the rubbish inside the USB connection. Immediately worked out.

You have an issue with the headphone jack. Your phone "thinks" that a headphone is plugged in thus outputting music to your headphones which are actually not plugged in. This explains why your phone still plays tones, and alarms because those will use all outputs due to the importance of those notifications. As stated in another answer, try cleaning the headphone jack. If that doesn't work, then replacing it will most likely fix the issue.

Exactly the fix; used a simple keyboard air spray cleaner down the headphone hole and it worked.

Somebody should invent a little plug for that hole, I never use it since i connect to speakers via bluetooth.

try to do home sharing its working on my device hope its work with you all ....

Plugged in headphones and heard everything just fine. Unplugged them and now it's working fine. Just something stuck in the jack, I guess. I have an otterbox covering the jack and never use it, so who knows. This thread saved me a trip to the Apple store - thanks!

I see this issue a lot, and usually it's tied in with another issue where the volume keys on the side of the iPhone will not adjust the volume from the home screen. The volume icon will show up on the screen when you push the buttons but it won't adjust, but during phone calls or when playing back a voice recording, the volume buttons work fine. This issue also causes music not to play from the speaker. The issue is ALWAYS the dock-connector in my experience. Either clean it or replace it if that doesn't work.

*Note: If you want to test to see if this is the issue, remove the back of the iPhone and while it is still powered on, remove the 2 screws securing the dock connector flex, and unsnap it from motherboard. Now test the volume keys from the home screen. If it works now, you know your issue lies in the dock connector.

this worked! thank you so much