|  | Nokia headset / handsfree HDB-5 connector and schematics specification users reports and reviews | 
| Date | Content Revision | User opinion | Comment | Approved by moderator? | 
|---|---|---|---|---|
| CORRECT | APPROVED | |||
| CORRECT | APPROVED | |||
| CORRECT | APPROVED | |||
| CORRECT | yes works | APPROVED | ||
| CORRECT | This schematic works great. At last, I have a (visible) hands-free kit that doesnt make me look like I belong in a looney bin when I use it. ;-) | APPROVED | ||
| CORRECT | Thanks | APPROVED | ||
| CORRECT | Ya this is good ;) | APPROVED | ||
| CORRECT | Respect to author! :) | APPROVED | ||
| INCORRECT | It surprises me that the answer taster is on the speaker side of the circuit in the 8210 schematic. Is it correct ?? Thx, Larry | APPROVED | ||
| INCORRECT | APPROVED | |||
| 2008-11-16 17:51:45 | rev. 4 | CORRECT | APPROVED | |
| 2009-02-04 00:10:57 | rev. 4 | CORRECT | Hi i saw your diagram in this web page http://pinouts.ru/CellularPhones-Nokia/nokia_headset_pinout.shtml, I have a question I have a nokia 6120 and a motorcycle handsfree system whit 2.5mm 3 pole conector like nokia 3120, I want to convert a 4 pole connector into a 3 pole connector, can I join the speakers pins? Or which pins I have to join to have 3 cables to connect into the jack? Thank you very much Alex | APPROVED | 
| 2009-06-20 08:38:22 | rev. 4 | CORRECT | APPROVED | |
| 2010-04-01 14:38:56 | rev. 5 | CORRECT | Works :) I made a kit for a Nokia 1200: http://dodo.slack.free.fr/kit_pieton_1200 | APPROVED | 
| 2010-04-30 05:55:36 | rev. 5 | CORRECT | APPROVED | |
| 2012-01-05 13:25:21 | rev. 7 | CORRECT | APPROVED | |
| 2012-01-05 13:25:32 | rev. 7 | CORRECT | APPROVED | |
| 2012-03-20 21:20:54 | rev. 7 | CORRECT | APPROVED | |
| 2012-05-02 13:10:24 | rev. 7 | CORRECT | flawless | APPROVED | 
| 2012-08-13 12:50:10 | rev. 7 | CORRECT | APPROVED | |
| 2014-11-14 23:56:33 | rev. 7 | CORRECT | alreaady fixed | APPROVED | 
| 2020-05-14 12:21:45 | rev. 7 | CORRECT | no, all is good , thanks. | APPROVED | 
| Date | Content Revision | Author | Comment | 
|---|---|---|---|
| 2008-07-27 20:40:10 | rev. 3 | S | "answer taster"? That's not English any native speaker would understand. I have no idea what is meant. | 
| 2008-08-22 21:15:37 | rev. 4 | Frog Twissell | added 6120 to list of phones | 
| 2009-09-07 20:42:33 | rev. 4 | Ajit R Kumar | try thiz | 
| 2010-01-14 22:54:56 | rev. 5 | Frog Twissell | based on compatibility listings for commercial headsets. Microphone impedance should be 1k4. | 
| 2010-02-27 22:22:05 | rev. 5 | Brett Os | How is the external FM ant connected to the jack plug???? Any ideas on an external ant, with just one wire comming out of the JACK! | 
| 2010-02-27 22:22:18 | rev. 5 | Sorry i forgot to say thanks! Thanks!!! | |
| 2010-02-27 22:22:32 | rev. 5 | What connections, or poles on the jack plug correspond with the anntena, I want to listen to my Nokia phones radio without the use of an external headphones. | |
| 2011-06-11 10:46:16 | rev. 7 | Hans Bosshard | it works for me | 
| Pinouts.ru > Pinout of Nokia headset / handsfree HDB-5 connector and schematics and layout of 4 pin 3.5mm (2.5mm) plug connector  | should be correct |