Sound Through Speakers while Headphones in?

Was this a one-off, or does it do this consistently?

 

Hmm, funny that it recognises that they are plugged in but doesn't use them.

I suppose you've tried the obvious: rebooting the phone, looking to see whether there's any dirt or fluff in the headphone socket (be careful trying to remove any though - easy to damage things), or just trying a different pair of headphones (in case there's an internal break in the headphone lead)?

 

I'd shine a light in and see whether you can see anything in there. If you can a soft brush or an air blower would be my suggestion.

 

As you've isolated the problem to be specifically between your phone and those headphones, the only thing I can think of at this point is if there's some kind of build-up right up at the base of the headphone's plug end (see jpg)

A headphone jack is essentially just a mechanical, spring loaded switch, with metal contacts that must aligned exactly with the metal contacts on the headphone plug, enabling the audio signal to go to either the internal phone speaker or the headphone. If there's something like an old bit of tape or something right where the plastic and metal meet, it might be just thick enough that it's preventing the plug from being fully inserted into the jack (which will prevent the jack's spring loaded switch from being pushed outward). Kind of a long shot, considering those headphones do work elsewhere but as almost everything in a smartphone is miniaturized that often applies to tolerances too.

 

To be honest I really can't say, but when you push your headphone plug end into your phone's headphone jack, it really is just a mechanical switch inside. The plug end pushes aside a spring-loaded piece of metal, switching contacts so the audio out changes from the speaker to the headphone/earbud. In addition the metal contacts that make up the shaft of the plug end, in this instance ground, left channel, and right channel separated by plastic insulators, also have to line up with their corresponding ground, left channel, and right channel contacts inside the jack. If the the plug isn't fully inserted, the switch may or may not be moved, and the matching metal contacts might not be aligned properly. Depending on how misaligned they are (which correlates with how deeply the plug end is inserted), there might be only one channel going to the proper output. And really this is way more verbage than necessary, just take a look at the plug to see if it's clean and make sure it's fully inserted.

 

So is this sound issue just happening when using the Youtube app? As you've stated you've tried using those headphone elsewhere and they work OK, and you tried a different headphone in your phone and it worked OK so does this issue happen using just that one set of headphones and the problem remains using different apps?

 

Very puzzling. perhaps this is some glitch with your phone's audio at an operating system level. Try rebooting your phone into its Recovery Mode and wiping the system cache partition. The cache partition is different than the app caches, and to clear it your phone needs to be running in its Recovery Mode. Also, the system cache has its own dedicated partition that's completely separate from the user data partition so this won't affect your personal data at all.

 

this happened to me before! it turned out that the node right on the very end of my headphones was still inside the headphone socket! it registered the headphones as being plugged in but the sound was still coming out of the speakers, with a very steady hand and some tweezers and about 2 hours of concentrating i mnaged to get it out!!!

 

no it didnt work in other devices unfortunatly, because the connection was lost completley between the end of the head phones and the inside of the head phone adaptor undreneath my phone, if that isnt the case it may well be a loose wire or a broken connection within th phone if it has been damaged some how

 

some times the jack socket, the actual metal it yu put inside your hone could be either to long or to short, so it could only be out by a fraction and ouldnt make the connection, this has happened to me previously asell where i had to pull it out a tiny bt just so the connection could be made between the two because every headphone jack is completley different to the next with width and depth alike.

 

you can try that that is the only other verifyable explanation i can give at this time im afraid other than that im totally stumped! i used to have to twist them and pull them in funny directions and then wedge them in place before it even decided to play anything

 

Apologize for not having the time today to read through the whole thread, I'll try when I get home from work.

If it's not a physical issue, (which I suspect it is, based on your description), again, sorry if it's already been covered, but do your headphones have three black stripes on the plug or two?

There's a difference

I have the same issue when I try and use my son's iPhone set with the three stripes, but have no issues when there's only the two stripes. I won't get into the technical detail, but here are a couple of great references to help.

https://www.quora.com/What-is-the-d...headphone-and-three-stripe-earphone-headphone

https://www.quora.com/What-is-the-difference-between-3-5-mm-jack-in-mobiles-and-laptops