iPhone 4 and SkullCandy FullMetal Jacket not getting along

Discussion in 'iPhone Tips, Help and Troubleshooting' started by jediobiwan, Jun 29, 2010.

  1. jediobiwan macrumors 6502


    Jun 29, 2010
    So I know the problem causing me to not be able to use my SkullCandy Full Metal Jacket headset with my iPhone 4 is the steel antenna, but does anyone have a solution?

    It seems OK as far as a low level interference when not using the phone, as long as something else is playing, but phone calls are not possible due to the interference from the antenna/headset.

    I already tried what Square suggests for their card readers (hole through a piece of paper) with no luck.

    ETA: Also, and this may be the same issue, but the play/pause button doesn't work now.
  2. rwd hero macrumors 6502

    Aug 6, 2008
    Baltimore, Maryland
    My V-MODAs button work great with the iPhone 4.
  3. jediobiwan thread starter macrumors 6502


    Jun 29, 2010
    Anyone else?

    P.S. Sometimes the button works, but most times it does not.
  4. rwd hero macrumors 6502

    Aug 6, 2008
    Baltimore, Maryland
    I had the same problem with my first set of V-MODAS, you should return them and get another pair. Thats what i did and the headphones have worked wonderfully since.
  5. hensls macrumors newbie

    Aug 17, 2010
    iPhone 4 and SkullCandy FMJ incompatibility

    The people at the Apple store said "it should work, nothing has changed"... the FMJ mic doesn't work on iPhone 4. Its fine with the older iPhones. I want my $ back.
  6. C5Longhorn macrumors regular

    Jul 31, 2010
    Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_0_2 like Mac OS X; en-us) AppleWebKit/532.9 (KHTML, like Gecko) Version/4.0.5 Mobile/8A400 Safari/6531.22.7)

    I have an iPhone 4 with FMJ headphones and have used them once so far without any issues. I would return them.
  7. joefx macrumors newbie

    Sep 9, 2010
    fmj headphones are ok the problem is apple

    hi, ok is my first time i wrote here and i test thsi problem a lot and i find some interesting things about this, i tray to explain and is very long and hard so excuse my english

    first i have an skull candy fmj too. and whrn i use in my iphone 4 i note the sudenly changes of volumes too, (ok this is not new i know) but i notice some strange behaivor about this.

    inot only i have the volume problems also i have this more issue, when i use my skull candy to make a call or answer one, the other callers cant ear me , and in the other phone they toldme they listen a clicking sonud that make impossible to earme.

    ok.. then i try this... i connect my skull candy to my iphone and i try to record some voice note and i discover that when i do this is impossoble to record any in a very good form, but... when i use the original apple headphones i cantalk and record very well.

    first i think was my headphones and i tested in another iphone 4 the other iphone work perfet with but headphones (apple and skull candy) the other iphone was a canadian iphone tjis means is another series of manufacter.

    the first thing of this problem is that insome iphones 4 happen and in other not, thats is weird but not finosh yet, seat and put attention to this.

    i put my skull candy in my iphine 4 (the one with the problem not the canadian) and i turn up the volume to the max and play a song and of course the problems still but if you pause and listen very carefull you canear a series of clicking noises with an especiffic patern, this is the patern three click and a silence, and repeat, like

    1,2,3, ,1,2,3, ,1,2,3, ,

    ok i try to make and musical rythm explanation of the patern, and i notice that this is exactly the patern and the clicking noise that the oter caller ear when i try to use this headphones to make ana call.


    if i use the apple headphones of course no problems appear, and this is my conclussion

    this clicks is a signal that the iphone send via headphones to make possible to control functions like volu,e and pause whitout the needing to put more wires in headphnes cable and make a compatible headphones jack

    on standard telephone headset the jack was 4 conector right, left, ground and microphone, the way to control the pause and answear button is putting the ground and mic cable in short and any standar telephone understand this like a push button, and use to answear and put play and pause

    apple control volume also, but obousli you need 2 more cables to do that and this is the way that use the clicking boises that i ear, is a code for send in less cables more control sognals.

    ok thats sound strange i know, but if you oppen the apple control and mic that came with the original headphones you notice that there ara a set of little transistors and a little chip, and i wonder what that, the only answear is for decode special control signals

    one thing that made me think that is this simple test, i connect my skull cand and again the pause buttonwork wird putting volume jumo and so on, but.... if i yell very loud to the microphone in the skullcandy the voume chang too and some ptimes they put in pause.

    some guy report that driving in theri bike with the sound their iphone make rar thing and i recreate that escenario.

    the answear to this is that... when the mic detect a loud sound there is a vry little change in voltage and imoedance and tjis changes are detected by the transistors and withe code sognal (clicking nosies) their send to the iphone volume changes in the same way that happens when you press the vpulmebuttons in the origianl headphones from apple


    the iphone 4 is a pice of crap that make all the hardware incompatible with all and the only soultion is wait that apple autorize other brands to use their techonology and the user pay the final price.

    is very unfair apple do this, and obously the apple "genius" ara a bunch of idi-ts.

    the strange part of this is that some iphones 4 do and another not, this is the proof that apple do not have qulity test

    i'm very upset for this problem the onl soultion that i found is cut the skull candy and put in the apple headphones cable, as you kwonthis cable is a crap and brpke very quickly, and the skullcand cable are more heaby duty

    i hope my explanation work in some way to any one, i dont have and ociloscope to make more test to this clicking nosie but i think that i made a some kind of dicover

    if any one can tell something more about this i and a lot of user where happy


  8. jpbergman macrumors newbie

    Nov 3, 2010
    G4 works with other headsets

    MY Klipsch work fine when on a call, but do not have the bass that is put out by the FMJ. I too am experiencing issues with my new pair of FMJ. So just to be clear, you can successfully use other headsets with a microphone. But I am PISSED that this new headset does not work. I used to use this for my 3Gs and it was the best headset I ever owned. I could be on conference calls and riding my bike without even wind interference.

    I guess this is the risk you take when you "have to have" a new tech toy when it first comes out.
  9. Multithermal macrumors newbie

    Jun 26, 2011
    New 2011 FMJ's work with Iphone 4 !

    After a brief conversation with a Skullcandy rep i was assured that the new fmjs are made to work with the iphone 4
  10. mikelegacy macrumors 65816


    Dec 5, 2010
    Pittsburgh, PA
    I have the older FMJ's with the metal and they work perfect with my iPhone 4....
  11. Rocko1 macrumors 68020


    Nov 3, 2011
    Can you tell me if your FMJ's look like this or is the metal mesh cover flush with the metal body?

    Attached Files:

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