How to fit simple earphones in iphone?

I have simple headphones, earphones, which works well with computer, other nokia phones but when i put it in Iphone 3gs then it doesn't sound properly.mean no real and quality output, it gives only sounds of instruments in audio but no vocals.

My guess is your phone is getting old and you need to replace the headphone jack. That is not that hard to do. Youtube it.

  • Would a bad esn version iPhone be able to be activated with simple mobile? So I want to buy a iPhone 5 and I saw one on eBay for Verizon but it has bad esn like now Verizon has its iPhone 5 unlocked but if it has bad esn would I be able to activate it? The iPhone 5 for Verizon is factory unlocked which allows you to connect to gsm which is what simple mobile is
  • Sprint iPhone on h2o, simple mobile? Is it possible to have h2o service running on my sprint iPhone 4s? Or even simple mobile, virgin mobile, straight talk, or anything else? My phone isn't jail broken and not unlocked. Can I still have any of these services? If so, how can I go about getting this done?
  • Is there a simple way to uninstall iOS6 and go back to iOS5 on my iphone? As title thanks. I use iPhone 4 and lost Googlemap after upgrade. Sure I can still access googlemap via Safari but it's just not as convenient. I'd like to roll back to iOS5. How do I do it please?
  • IPhone says T Mobile instead of Simple Mobile? So I got a new iphone today and i had to cut the sim card down for the 4s. So when i finished and put it back in the phone, it says i have T Mobile, but it is a simple mobile sim card? When i used the simple mobile sim card for the 3GS it said "simple mobile" but now that i changed it, it says t mobile. Does anyone know why this happened? And am i being like charged? Is it because i cut the card? I'm really worried right now >_<"