I don't have a manual for my H12. I paired it

Hi Anonymous

You can try removing the pairing information if your Bluetooth from your phone and then re-adding and pairing the device (to get those steps please look at your Phone's User Manual). If the issue persists please get in touch with our support team, you can do it at this link:
http://bit.ly/ContactUs-Locate

Regards,
Gaby
Motorola Mobility

Motorola Default unchangeable pin is 0000

https://motorola-global-eng.custhelp.com/app/answers/detail/a_id/12462/~/pairing-pin-code

unpair it from your device and pair it again or try restarting the device your connecting it too and unpair and pair it again. Hope this works!

You can view the user guide for your headset here and the pass key code is four zeros. 0000

http://tiny.cc/cowsR

My H12 manual has the passcode as 4 zero's for most phones.

have you tried charging ur h12 headset until its full? if so then the internal battery inside the headset is probably getting old or dying out, suggest you bring it to ur nearest local Motorola store for details on repairing the headset.

I just kepted trying the 0000 and it finally worked. Thanks for trying to help me. Debra

I just figured it out myself!!

here is how:
1.) press your home screen button at the bottom of your iphone
2.) open settings
3.) go into your general settings (same gear picture as home page)
4.) touch to open bluetooth
5.) turn on your H12 headset and place close to your iphone
6.) turn on bluethooth on iphone and it will automatically find the headset
7.) touch the motorola H12 button and it will enable the connection

I successfully paired my bluetooth by going into the connection phase, just using my common sense on what to do next once I turned the bluetooth on. Since it was not paired to anything, it automatically went into pairing mode. Thanks anyway!

Yes I would think that the unit is bad. If it is paire and you see volume level then there should be sound.