Headsets, Headphones, Handsfree - pinouts of mobile phones and other equipment  > Nokia pinouts
Wiring for the nokia 2.5mm 4-pole headset socket of Nokia 1100, 1101, 1110, 1600, 2100, 2300, 2500, 2650, 2652, 3120c, 3210, 3310, 3330, 3410, 3510, 3510i, 3650, 3660, 5210, 6030, 6060, 6120, 6510, 6600, 7280, 7380 7650, 8210, 8310, 8800, 8850, 8890, 8910, 8910i cell phones (except some smartphones)

Pin
Name Direction Description
1 Tip Speaker +
2 Ring 1 Microphone +
3 Ring 2 Speaker -
4 Sleeve Microphone -
 The answer/end button should be connected across the microphone connections. Microphone impedance should be 1k4. Speaker is 30 Ohm.


 

Nokia 3210 handsfree / headset schematic

Nokia headset schematic

Nokia 8210 handsfree / headset schematic

Nokia handsfree schematic

Both schematics made by Goran Jurkovic

4 pin 3.5mm (2.5mm) plug connector layout
4 pin 3.5mm (2.5mm) plug connector
at the headset cable (2.5mm jack used)
According to 21 reports in our database (19 positive and 2 negative) this pinout should be correct.

Is this pinout
Nokia headset / handsfree HDB-5 connector and schematics visual pinout:
Nokia headset / handsfree HDB-5 connector and schematics diagram
click to enlarge
Source(s) of this and additional information: discuss.treocentral.com, http://free-zg.htnet.hr/GoranJurkovic/nokia/ , http://wiki.openmoko.org/wiki/Analog_wired_Headset_Nokia
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