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I am using Xperia Soal with ICS 4.0. My phone is not accepting any head phone other than the original. It simply says "Headste not supported" and refuses to play music/any sound through it. Please tell me whether it is normal or my phone has some problem. I am not able to use my other premium headste with the phone. Please help!!
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Website : http://www.xperiablog.net/2012/02/27/2012-xperia-range-uses-different-3-5mm-headset-standard/
The new Sony Xperia S, Xperia P and Xperia U will use a different 3.5mm headset standard compared to the older Xperia models from 2010 & 2011. The spec sheet for the new 2012 Xperia models highlight that the 3.5mm jack will now use the CTIA standard as opposed to the OMTP standard it was using previously.
So what does this mean in English? Well, one of the common issues that users of Xperia phones faced was incompatibility with certain headsets/headphones. If you tried to plug a CTIA headset into an Xperia phone it may have had reduced functionality or it may not even have worked at all. This is as the 3.5mm plug is wired differently in both standards. The CTIA standard is more common and is the one adopted by Apple iOS devices.
Sony’s move to adopt the CTIA standard for its 3.5mm jack is good news as it immediately opens up a wide range of accessories for 2012 Xperia owners. However, the flip side to this, is that due to the different pin configuration, older headsets that can currently be used with 2010/2011 Xperia devices will not be compatible with 2012 Xperia phones.
I did some try a while back. Sola would not reconise other earphones either. when it comes to the button.
I use my sennheiser headset no problem for sound though. Sound works everywhere i tried. What headset are these ?
Website : http://www.xperiablog.net/2012/02/27/2012-xperia-range-uses-different-3-5mm-headset-standard/
The new Sony Xperia S, Xperia P and Xperia U will use a different 3.5mm headset standard compared to the older Xperia models from 2010 & 2011. The spec sheet for the new 2012 Xperia models highlight that the 3.5mm jack will now use the CTIA standard as opposed to the OMTP standard it was using previously.
So what does this mean in English? Well, one of the common issues that users of Xperia phones faced was incompatibility with certain headsets/headphones. If you tried to plug a CTIA headset into an Xperia phone it may have had reduced functionality or it may not even have worked at all. This is as the 3.5mm plug is wired differently in both standards. The CTIA standard is more common and is the one adopted by Apple iOS devices.
Sony’s move to adopt the CTIA standard for its 3.5mm jack is good news as it immediately opens up a wide range of accessories for 2012 Xperia owners. However, the flip side to this, is that due to the different pin configuration, older headsets that can currently be used with 2010/2011 Xperia devices will not be compatible with 2012 Xperia phones.
Ok.. Thank you very much for the info. It seems then I have to buy a new set of earphones. The original earphone is not loud enough to listen to music while travelling 
Intersting info indead.
Then, it mean my meant for iPhone cable should work right ? Mmm.
Well, no, phone says microphone / buttons aren't availible.
Ok.. Thank you very much for the info. It seems then I have to buy a new set of earphones. The original earphone is not loud enough to listen to music while travelling 
Well, either you're deaf, you you're in a relly noisy environement and should use some noice-reduction headset.