how do you reset official ps3 headset?

like the other guy said just turn it on and resync it to your PS3 with the password 0000 and it should work

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Delete the headset and rePair it. To Pair it correctly, put the PS3 on the XMB, not on the Bluetooth Accessory Settings in the Settings menu. While on the XMB, plug the USB cable from the PS3 to the top of the headset (not the Desktop Base) and it will automatically Pair the headset to the PS3. After you do this, if it still does not work, do a Reset on the PS3. This will not delete anything, but it will reset it, so if you have a custom wallpaper/theme, you will have to set it up again. XMB > Settings > System Settings > Restore Default Settings. If that doesn't work, then there is something wrong with the headset. You can try to manually Pair it to see if it will work: How to manually Pair the PS3 headset to the PS3 - Press and hold the POWER button on the headset until the Power and Muting light flash alternately between green and red (once this happens, the headset is in Pairing Mode). You can now search for it on the PS3 (XMB > Settings > Accessory Settings > Manage Bluetooth Devices > Register New Device > Yes > Start Scanning > the headset will show up, and you can now choose it to Pair with the PS3 > when asked for a PIN, the code is four zeros (#0000). Manual mode for Pairing is not recommended as this will not give you all the features of the headset, such as HQ mode.

What do you mean? You can just re-sync the headset.

The password is 0000