Tracy and Matt's Blog

Pin B is used to recognize original charger when connected to ground (pin A)

I have been trying to find out where I can buy a blank connector and make my own adaptor and so far I have yet to get anywhere with this. Is there a different name for this type of connector other then "Enhanced Mini USB (EMU)"?

Thanks for the info.

Good work, this may be the only pinout for this device on the net. Thank you! One thing you might want to mention though is that "pin B" in the usb spec has N/C (ignoring usb2go) the hermes seems to use it to detect charging source.

Current theory is that it works like this:

If power is detected and a usb connection is negotiated on the data lines, charge.

If power is detected and a usb connection is not detected, don't charge . (Theres a bug where it will accept some charge at least the first time only you connect power, then you have to reset).

If power is detected and usb connection is not detected BUT pin's A and B are bridged then allow 'dumb' charging.

No idea why they've done this but the behavior fits the theory.

One question though. How does the unit detect headphones are inserted? Obviously it's not anything in the mic/vol box as you cut it off.. does the 'EMU' connector on the headphones bridge any pins on the USB side you're aware of?

Thank you for the pinout. Ihave not yet found a plug with all 11 pins. Does anybody have a idea where to buy?

Thank you

I desperatly want a blank cabeled connector too!!!

prefereably 30cm long, then we can make our own, charge cable for the car, as well as audio in and out.

Adressed the connector question to a big german electronic supplyer as well as to the HTC service.

It might hellp if you also adress the question direct to HTC Support

Kind regards

Hello, Im not a technology expert just a simple user. Ive tried to connect my HTC TYTN to a MP3 player USB stick; It doesnt work! Ive been told that this is because the PDA is a USB slave; Is this true? Can I reverse this to make the PDA a host; Any help much appreciated but in laymans terms.

The very simple answer is no. You cannot connect any USB 'slave' device to the M3100, the M3100 simply doesn't have the necessary hardware to achieve this. All PDA's have this limitation at the moment, the one exception will be the XDA Flame. When that is released it will have'USB on the Go' which is a new technology that will enable external devices to be connected.

I have an Aigo F029 multimedia watch that uses this connector. I don't think it has the audio wires though.

I also tried to find a blank connector for this device for a custom wired hands free set and audio connection to my car amplifier. In the end I decided to use the connector of the headset. It is not easy to disassemble the connector (had to use a knife, small screwdriver, a lighter and a soldering iron), but eventually I managed to get to the terminals. There's a small PCB in the connector with some SMD's; probably for EMC purposes.

GJ: Did you manage to connect the audio to your car amplifier AND have the device charged ? So, can you use the power/usb connection simultanious with the audio connection ?????

This would be great for in-car use, having the sound over your car amp and have the device charged at the same time !

THANK YOU

Thats all I really wanted to say, the information you have here is very useful and has saved me sitting around with a scope working it out.

As for plugs, I didn't want to mutilate any of the original accesories, but if we can't buy them anywhere I guess this is the only choice.



As for the power pins question this is simple a case of juice.

If I plug the USB cable into a HTC device, then plug that usb cable into a usb port and just wire that up to a bench power supply... the device draws a few hundred milliamps. (As much as USB spec allows).
This device, much like other mobile devices I have used which USB charge, can barely draw enough power of the USB to run itself let alone charge the battery.

However, if you close the A/B pins you are telling the phone "This is not a USB port, its a 1A power brick" so the phone charges the battery at its maximum safe rate.

This behaviour is stop the phone frying your usb ports.

P.S.

I notice there was also a question asked about the headset.

As its obviously not a physical switch in the connector and there doesn't seem to be any spare pins to signal an official headset is inserted, it must simply go on the current drawn through the speaker.

Think about it, if I'm playing sound into a headphone socket with nothing plugged into it, no electricity will flow anywhere, but plug in an 8ohm speaker and suddenly you've completed the circuit, current flows through it.

The way to test this would be a variable resistance with a large range, perhaps a resistance box.

Start with lots of resistance and slowly slide your way down to a few ohms, then back up again. You should be able to locate thresholds at which the device considers the headset connected/disconnected.

UPDATE:

Since looking up the pinouts for this device yesterday, and discovering the plugs are impossible to find, I found a headset and had the plug of it.

Firstly your pinout is great and useful.

Secondly now I've dismantled the plug on the headset I can see that pin4 is linked internally to pinA (gnd) in the plug assembly and this is how the device detects a headset connection, by grounding pin4.

I discovered this completely by accident, after using the plug from the headset to make a new charger I discovered I couldn't get sound from the device if this new charger is plugged in.

Cutting the pin4 connection solved the problem.

Anybody tried this?

http://www.gpsforless.co.uk/product_details.php?id=6911

Encore: Do I understand correctly that the wires from the original headset include the wires for USB/charger ?
So, both DATA and AUDIO wires are actually present in the provided headset ?

Just wanted to let all you HTC users know that to charge and sync your phone you can use a standard MINI usb cable - the EMU dongle it not required. The wide part of a MINI usb plug fits right into the wide part of the EMU port and properly aligns the data connections. For you headphone hackers out there - that means you can then modify the supplied EMU dongle to be used to connect to your headphones!

I have been provided a VOIP softphone from Nortel for working from home. At present I can only to answer the phone by clicking the mouse on the screen. This is a bit of a nuisance. There is one USB headset by Nortel that will allow me to answer the phone by pressing a button on the headset itself, but the only problem is that it is wired.

Is there a device that will allow me to insert a 'dongle' into the PC USB port (instead of the headset), and then connect the headset to another dongle 'dongle1'. The purpose would be to create a wireless connection between 'dongle' and 'dongle1'.

Apologies for the terminology.

There was a comment/question of Dennis wether or not Gj managed to get sound to the car amp and get the PDA charged at the same time. Well, I managed, thanks to the comments stated here. I have a car cradle from Carcom. This cradle has a cable wich is split half way to make it possible the suply power to external GPS antenna. I changed the wiring inside the cradle, soldering the wires directly to the connector inside the cradle according to the pin config above. Then I made an extra connection between pin A and 4. The 5 pin connector which is orginaly used for the connection of the GPS anatenne is used as a audio out port and cennected the the car amp.

try here... good luck
http://www.laptopsockets.co.uk/mini-usb.htm

thanks for the information here its really useful.
Especially to Carlos who gave the tip on using standard
usb in the HTC proprietary one..really got me in out of a hole when I forgot to bring my charging cable on my business trup.

You are a SAVIOR! Now the big question for me is, on the actual board where the USB jack is located, is it lined up as 1A2B3C4D5E6 ??? I had to pull the usb jack completely off the board (darn dog chewed it all to pieces) and like an idiot, forgot to note which pins were for the data portion... help! please!

Michael Brown

HTC makes an 11pin3.5mm audio jack converter for the
meteor that should do the trick:
http://store.msmobiles.com/htc-mteor-audio-jack-converter-11-pin-to-3-5mm.html

Dave

Has anyone figured out what pinouts are used for a in-car charger?

HTC Touch - Has anyone now got a definitive wiring connection for the 11 pin for both Audio and Charging? Also can you use the Headphone USB (does it have enough pins)
Thanks

Mike, the pin-out for the HTC Touch is exactly the same as the Hermes above. The headphones can be modified to provide both audio and charging as they only have the pins on one side. Best bet is the splitter thing that HTC make, you should be able to get one from eXpansys.

Matt

Matt, Thanks for the reply. I found the 'splitter' you were talking about. You obviously charge via the 5 pin USB and Audio via the other 6 pin. As regards the 6 pin audio I am try to 'modify' my current car kit which has the following outputs
1 - Vin - Charger input
2- GND - Charger output
3 - ACI - Auto-connect Ignition
4 - Vout
5 - USB Vbus
6 - Fbus Rx/USB D+
8 - GND - Data GND (Logic)
9 - VMic- - Audio IN - Ext. Mic input negative
10 - VMic+ - Audio IN - Ext. Mic input positive
11 - Hs Ear L- - Audio Out - Ext. left-negative
12 - Hs Ear L+ - Audio Out - Ext. left-positive
13 - Hs Ear R- - Audio Out - Ext. right-negative
14 - Hs Ear R+ - Audio Out - Ext. right-positive

Have you any thoughts on which of these I sould connect to the 6 pin Audio USB? (I have got the 5 pin sorted)
Thanks
Mike

In some prospects is written, that the
HTC P3600 has an RS-232 interface. Is this
correct? Is it possible to make a cable from
this pin-out. Is there a cable available?
Thanks
Hanspeter

Is it my imagination or are all these plugs of such poor quality that they don't last? I have had my ATT Tilt for less than a week and the mini usb plug is malfunctioning. :(

I’m also trying to solve a problem with my car kit. It is an Arkon CM799 and it has an input for 3.5 headphone jack and a regular mini USB connector for the phone charging.
I am trying to find a best way of connecting both these inputs to a HTC TyTN Enhanced Mini USB, so I would have both charging and sound.
I had an idea just to open the car kit and solder an external cable with an Enhanced Mini USB, so it could be just plugged directly into the phone.
My question is, have somebody find a place where to buy the ExtUSB blank connector or may be a cable that would include all 11 leads (both for power and sound)?

Thanks,
Michael

AGH. I've read all of the comments, searched the web extensively and still don't see where I can buy a 11-pin ExtUSB plug.

Where can you buy a 11 pin ExtUSB plug to make a custom cable?


Thanks much

Does someone know, the "official name" of the antenna plug in our HTC?

Thanks

Hi everybody,
Has anybody found/tried this cable yet?

http://www.expansys.com/htc/p_htc_item.aspx?i=148545

Seems to an HTC own brand product...
Check it out!

I have a standard 11pin USB to 3.5mm audio jack which I use to listed to podcasts in my car audio system. Problem is that when I receive a call, can hear caller but caller cannot hear me. Is it possible to have this connector modified so that mic in phone can be used in hands-free mode and listen to call via car audio system?

I have been studying this and it appears that Motorola's USB charger required a slightly different configuration, B requires a 145K resistor linked to A and not simply shorted. Wondered if it will be sufficient to have the same effect on the HTC phone (i.e. using the Motorola charger to charge HTC Touch? Have anyone tried it?

Another question is , will the HTC Touch support a 5.7V charging input as this is the voltage that my Nokia E61 charger is putting out. I wish to use just one charger for both (with the right adaptor as described in here of course) as I travel and try to minimise the number of charger and main adaptor one needs to carry

Question, I own a att tilt phone. Where can I pucrhase a mini usb to plug into my yamaha receiver? Thanks.

I own an att tilt phone. Where can I purchase a mini usb to plug into my yamaha receiver?
Thanks.

Where can I purchase a usb to conect to my yamaha receiver, from my att tilt?
Thanks

Sorry, I had a blonde moment....hehehe....

Hi everybody,
I am trying tp connect an A male USB gps receiver via an A USB female to mini USB male adaptor to my HTC S710
GPS doesn't light and nothing happens
Do you know if it possible to get the phone to receive data from my gps receiver and give it power?
Thanks

Hi everybody,

Anybody knows which is the way to cut the internal microphone?
Are they cortocircute any pings?.

My internal microphone, only works when I press between the usb an switch to open the battery door. Any idea?

Thanks.

anyone by chance have the wire color codes that match the pins on the factory headset? I don't have a multimeter to check it with.

found a dvom.....and the broken wire I was looking for right at the neck of the connector.....now I just need to put it back together with my JVC marshmellow earbuds.....which I may add are amazing for the price...like $20 at walmart
1 Mic=white
2 +right=red
3 switch=blue
4 ground=blue/copper
5 ground=copper
6 +left=green
A ground=red/copper

I have a HTC Touch. I have 3 questions:
1. All the headset for the HTC PDA's with mini-USB connector is compatible with Touch?(I'm not found dedicated headset for Touch in my country, but I found headset for HTC TyTN for example...)
2. A bluetooth stereo headset is a better solution? (It's more expensive, eat more battery, but not affect the connector - this connector faults on a frecvent usage...this is true?).
3.Is a big differences in battery comsumption between a wire headset and a bluetooth headset?
Please help me...and thank you.

Hi can someone give me more info on what the "switch" pin does as listed on the audio side of the connector?
Is it an output from the phone that turns something on? Or would whatever is plugged into it actually close the switch to activate something in the phone.

Any thoughts are welcome.
thanks

Please share this pinout (and any other you may have) on AllPinouts archive (http://www.allpinouts.org).

AllPinouts is created with the same MediaWiki software that was developed for the Wikipedia project and allows registered users to contribute and improve the website. All text is available under the GNU Free Documentation License (GFDL) and may be distributed or linked accordingly.

AllPinouts is a free content project that collects information about hardware interfaces of modern and obsolete hardware, including pinouts of ports, expansion slots, and other connectors of computers and different digital devices (i.e. Cellular Phones, GPS, PDA, Game Consoles, etc.). AllPinouts archive already contains hundreds of pages organized into three main categories (Connectors, Cables, Adapters) and several subcategories.

hi i have an htc 8525, my mic die, i just wondering is it
posible to atach another small microphone, soldering it.
can anyone help me

regards

Hi all

Found this:
http://www.etech-city.com/product_info.php?cPath=136&products_id=1052
you have here the extusb connector with the 11pins
you can cut the cable and then have access to all conncections even the
mic one.

Hope this helps
regards

You can get the connector separately at www.handy-datenkabel.de

Best regards