I got a bluetooth from a friend who had used it previously. When I tried to pair MY phone with the used headset, it wont pair. Please help.

My guess is you don't have the headset in pairing mode. The instructions below are from the instructions for the BH-218"
Before using the headset, you must pair and connect it to a compatible phone.
1. Make sure your headset is switched off and your compatible phone is on.
2. If you've never paired the headset with a device, or you've cleared the pairings,
switch the headset on.
If you've previously paired your headset with another device, press and hold the multifunction button
for 5 seconds.
Pairing mode is switched on, and a blue indicator light starts to flash quickly.
3. Within 3 minutes, switch Bluetooth on in your phone, then set it to search for
Bluetooth devices. For details, see the user guide of the phone.
4. On your phone, select the headset from the list of found devices.
5. If asked, type in the passcode 0000.
When the headset is connected to a phone, the Bluetooth indicator light flashes
slowly.
You can pair your headset with 8 phones, but you can only connect it to 2 phones at
the same time.
With some phones, you may need to make the connection separately after pairing.
Tip: Can't connect the headset to a compatible phone? Make sure that the headset
is charged, switched on, and paired with the phone.

Well I know for sure the default pin for the M1 is indeed 0000. However I cannot tell you what the pin would be for your specific bluetooth dongle. If I where you I would try 0000, 1111, 2222 and so on

• As with all Bluetooth headsets, the H700 needs to be paired with the device before it can be used, which is done in pairing mode. In pairing mode, the H700 makes a transmission so that Bluetooth-enabled devices can pick up the device and connect to the headset. Once connected, no other device can connect with the Bluetooth headset. To enter pairing mode on the H700, open the headset boom located near the microphone. After a few seconds the indicator light will turn purple. Once purple, the H700 is in pairing mode.
  

Searching for the Device With the M1

• Once the H700 is in pairing mode, have the M1 search for Bluetooth devices. To do this, press "MENU/OK" and choose "Tools," "Bluetooth," "Add New" and "Search." A list of Bluetooth devices will show up on the screen. Highlight "Motorola H700" and press "MENU/OK." Choose "Add to Trusted," enter "0000" and press "MENU/OK." The devices are now connected and ready to be tested.
  

Testing the Devices

• Once the devices are connected, test that both the phone and the headset are working properly together. First, place the headset in your ear. Dial a number on the phone and press "Send." If you can hear ringing, the devices are connected properly and ready for use.
  If the connection was not successful, repeat the previous steps and try again. Make sure the indicator light is glowing purple and is steady. If you have connected the headset to a previous device, make sure that device is turned off so as not to interfere with the connection procedure. Once the other device is off, close and reopen the boom to enter pairing mode.
  

Please follow the detailed instructions below for the proper pairing of the headset with your phone.

CHARGING
Before using, you must first charge your headset.
20 minutes = minimum charge
2 hours = full charge
Light is solid red when battery is charging.
NOTE For the best user experience, keep your headset fully charged.
CAUTION Do not use headset while charging and do not connect the charger while the headset is in use.

POWERING
Press the control button for 2 seconds to power on. Press the control button for 3 seconds to power off.

PAIRING
Step One:
Prepare Phone- Turn on Bluetooth For most phones, go to Settings/Tools menu and select Bluetooth or Connectivity and select "On."
Step Two:
Prepare Headset- Pairing Mode Begin with headset turned off. Turn headset on (hold call control button for four seconds until the light flashes blue) and it will automatically go into pairing mode, flashing red and blue.
Step Three:
Pairing- Add Headset to Phone For most phones, go to Settings/Tools
> Bluetooth > Search or Add a Device, then Select "220Plantronics." For passkey enter
0000. Headset will flash blue when paired successfully. It is now powered on and ready to use.

NOTE: Normally you only need to pair the headset and handset once. If headset has been previously paired with another device, follow pairing instructions below.

If headset has been previously paired with another device, please follow these instructions for pairing a second time. Be sure the headset is fully charged.

Begin with headset turned off.
1. Press and hold down the call control button for 8 seconds until the headset status
indicator begins to flash blue then red.The headset is now in pairing mode for the next 120 seconds.
2. While the headset is flashing,use the phone menu to search for Bluetooth devices and select "220Plantronics."
3. When prompted for a passkey, enter 0000. Headset will flash blue when paired successfully.

NOTE: The headset can pair to multiple Bluetooth devices, but will only connect to one device at a time. The headset will automatically connect to the last device to which it was connected.
Please don't forget to rate me if satisfied.Thanks for choosing Fixya.Good Luck.

Step One:
Prepare Phone-
Turn on Bluetooth
For most phones, go to Settings/
Tools menu and select Bluetooth
or Connectivity and select "On."
(Or see the user guide for your
phone.)
SETTINGS
Time and Date
Phone Settings
Bluetooth
Sound Settings
Network Services
Security
Reset Settings
BLUETOOTH
Discover/
Search
BLUETOOTH
220Plantronics
Headset Passkey
PASSKEY
0000
Step Two:
Prepare Headset-
Pairing Mode
Begin with headset turned off. Turn
headset on (hold call control button
for 2 seconds until the light flashes
blue) and it will automatically go
into pairing mode, flashing red
and blue.
Step Three:
Pairing-
Add Headset to Phone
For most phones, go to Settings/Tools
> Bluetooth > Search or Add a Device,
then Select "220Plantronics."
For passkey enter 0000. Headset
will flash blue when paired
successfully. It is now powered on
and ready to use.
NOTE: Normally you only need to pair the headset and handset once. If headset has been previously paired with
another device, follow pairing instructions on the next page.

Hi,you will have to delete the previous paired phones first before you can be able to pair the blackberry phone with your blue tooth device.

You can use the below steps to know how to pair properly:

Instructions

Pair Your Blackberry with a Bluetooth Headset



Turn on Bluetooth headset and Blackberry hand-held.

Enable the Bluetooth radio by going to the options window and clicking on Bluetooth. Click on Enable Bluetooth in that window.

Add your Bluetooth headset to your Blackberry by clicking on Add Device in the Bluetooth window.

Find and select the name of your Bluetooth headset from the list that appears. The Blackberry will search for all Bluetooth devices within range, so other devices might show up on the list.


Click Activate Bluetooth device if you receive a call and the Bluetooth headset does not pick up automatically.



Use your Bluetooth Headset with your Blackberry

Make sure the Bluetooth radio on your Blackberry is turned on before you try to use your Bluetooth headset.

Use the voice-dial feature to call contacts if your headset has that capability. Not all headsets support voice dialing, but more of the newer models do.

Press the on/off button on your headset to end a call or use the end button on the handheld.



Tips & Warnings

Pair your Blackberry with any Bluetooth-enabled device using the same steps as those for connecting a Bluetooth headset.

Remove your Bluetooth headset from the list of paired devices on your Blackberry by selecting and clicking on Delete Device in the Bluetooth window.

Configure your Blackberry to connect to a paired Bluetooth headset without asking for authorization in the Bluetooth Device Properties window. That will allow your headset to automatically reconnect even if you take it out of range temporarily.

Only configure a Bluetooth headset to your Blackberry once. Once you configure the pairing between the two devices, the settings are saved and you do not have to repeat the processes each time you use it.

Turn off the Bluetooth radio on your Blackberry when not in use for security reasons.

Adjust volume on your headset or hand-held to a comfortable level. Excess volume from in-the-ear headsets can cause hearing damage.



Hope it helped.

Thanks for usingf ixya..

Try to remove the speaker from your device and try again

I bought a Jabra Bluetooth headset, It worked fine with my phone(nokia). I lost my phone now. Now i want to use the same headset with my new phone (huawi), but i am unable to connect it to my new phone as the phone is already paired with my previous phone. So please help me with the issue and tell me is there any way i can disconnect the bluetooth headset from my previous phone??

Try this: 1. Ensure that your phone is switched on. 2. If the headset has not been previously paired with a device, switch on the headset. The headset enters the pairing mode, and the indicator light starts to flash blue quickly. If the headset has been previously paired with another device, switch off the headset, and press and hold the multifunction key until the indicator light starts to flash blue quickly. 3. Activate the Bluetooth feature on the phone, and set it to search for Bluetooth devices. See the user guide of your phone for instructions. 4. Select the headset from the list of found devices. 5. Enter the passcode 0000 to pair and connect the headset to your phone. In some phones, you may need to make the connection separately after pairing. You only need to pair the headset with your phone once. If pairing is successful, the headset appears in the menu of the mobile phone where you can view the currently paired Bluetooth devices. When the headset is connected with your mobile phone and ready for use, the indicator light of the headset slowly flashes blue.

You may be having compatibility issue instead of what you suspect may be wrong with both your phone and the Bluetooth headset your friend gave you.

Well, there is no such thing as a Bluetooth headset being permanently locked in to a phone.

As long as there is an open 'visible' Bluetooth connection option and there are devices in range ready to pair, the process to pair starts.

Whenever there are incompatibility issues, pairing two devices using Bluetooth becomes a hassle.

It is very hard to lend a helping hand with this issue seeing that i also have tried pairing a smaung mobile with the HS500 bluetooth headset and it paired without any issues, what you can do is delete and other devices that you may have had in your device list then try it again that may help you.