Are you entering oh-oh-oh-oh or are you entering zero-zero-zero-zero? It does make a difference and it is easy to make the mistake. The correct one is zero-zero-zero-zero.
Usually the Jabra headset connects via blue tooth. You pair it with a smart phone once. No codes other than the pairing number you see on the phone when starting the pairing process.
Joyo, RE POST more info required, make,model#, complete question
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