Blackberry 8800 headphones aren't working

The Z11 has a four-pole input/output plug to connect the mic and the earphone. The earphone needs to be connected to the earphone jack and the mic needs to be connected to the mic input jack on the back of the computer. In other words, you should have to 3.5 mm plugs. Plugging both into the same jack will disconnect one or the other. Check your adapter, It should have two separate 3.5mm plugs. If it does, be sure they are connected to the right jacks on the computer. The headphone jack will have a headphone symbol; the mic jack will have a microphone symbol. Go to System Preferences, Sound. Select the line in preference for input and the line out preference for headphones. Just may work.

check your jack wiring cable using ohm tester

It should be compatible with any MP3 players.
The headset has a universal headphone jack that is compatible with most (if not all) devices.

pull the plgu of your headset partially from the jack play around it until the other headphone produces sound if this happens it mieans that the Audio port your using is either malfunctioning or you can try youy headset with an MP3 player or any audio device that uses a headset to find out if it is the headset that is damaged

keep trying

Try changing the Windows Default Audio devices

1. Go to control Panel
2. Sounds and audio devices
3. The Audio tab
4. Then change the Sound Recording Device to Logitech Headphone INPUT
   

Hopefully this will work

Hello. plug them into a stereo jack on a regular stereo. if it works, then at least you know they are working. Then you can plug them into the headphone jack on your computer. If they still do not work but worked on your stereo, then you have to find out why you are not getting audio output to your headphone jack on your computer On your computer, go to control panel, then to sound, then adjust system sound. make sure none of the mutes are checked at the bottom of any of the volume levels. you can also plug in a regular pair of headphones to the jack in back of your pc to make sure that you are getting sound. if not, then you have to enable the sounds to your pc jack in the sounds menu. hope this helps.

The Jabra c250 requires a 2.5mm headphone jack; the Blackberry opening is for a 3.5mm headset. You can buy an adapter at your local electronics store (like Radio Shack, The Source...).

Faulty headphone jack in unit. Possibly worked loose while inserting headphones. If still under warranty...return or replace. Otherwise, find someone who can open the unit and make necessary adjustments.

replace it