1. ron2112's Avatar
    I've been searching for the answer to this question for days and I just can't find it, so I apologize if this info is readily available somewhere.

    Is the Note 4's headphone jack OMTP or CTIA/AJH? Seems like such a simple spec question, yet I can't find anyone able to give a straightforward answer. All I can find are articles describing the differences and stating that different phones use one or the other. Help me out here?

    numfanja likes this.
    08-03-2015 03:56 PM
  2. SpookDroid's Avatar
    OMTP, apparently.
    The second common arrangement is the longer established and more formalised OMTP standard. It has the signalling connector (ground) next to the sleeve, with the microphone connector on the second ring. This is the reverses of the AHJ arrangement. It is used by the majority of mobile phones currently being sold, most Samsung smartphones, and older Sony Ericsson and Nokia smartphones.
    A note on headset standards: OMTP, AHJ and Apple - Windows Central Forums

    This diagram is from an S4, but shouldn't be different than the Note line.
    ron2112 likes this.
    08-03-2015 04:52 PM
  3. ron2112's Avatar
    Thank you very much, SpookDroid, for distilling that down to a simple answer with supporting citations. You are da man! (Unless you're not, in which case you are da woman, whichever applies!)

    msndrstood likes this.
    08-04-2015 07:24 AM
  4. SpookDroid's Avatar
    haha you're welcome, and hope it helped. As for the gender: It's a boy! So yup, a man haha (Although my parents still say I act like a 5-year-old...)
    08-04-2015 01:57 PM
  5. Tefen's Avatar
    The Diagram you linked for the S4 shows AHJ NOT OMTP!
    So the answer is AHJ as most modern Android devices are now AHJ to be compatible(or as much as can be) with headsets.
    The problem with this is that there is lots of old information still lingering on the internet which can be deceiving.
    09-11-2016 01:03 PM

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