I had the same problem with my iphone 3G recently. Noticed that the headset jack actually did not go in fully - a small gap remained. Stereo Earphone In Line Control With Mic Headset 3 5mm In Ear Earbuds For Iphone Doesnotapply Iphone Earphones Acc Earbuds Apple Headphone Iphone Earphones Your headphones will turn on and then the LED light will flash red and blue. Iphone headphones buttons not working . Check the next steps for a proper guide. This is referred to as iPhone stuck in headphone mode Thankfully the fixes that work successfully for most people are quick and easy to follow. To turn off your iPhone press and hold the power button also known as the Sleep Wake button and slide the button. Most of the usual problems are the inability to hear sounds or malfunctioning microphones. If any or all of the above fail to signal that your voice is being heard you likely have a problem with your iPhone microphone. On some cases users find that the buttons of their not working...