Develop Bugs

Micro USB pinout?

I have googled for quite a while, and have not found the pinout on the microUSB port. I really want to know if there is any way to get analog output from that port like my old G1. It would be nice to have one port for charging and audio (for cars, docks, and boomboxes).

micro B
http://www.google.com/imgres?imgurl...official&tbs=isch:1&ei=kdo4TPG8IsPbnAefsoycAw

elegantai said:
micro B
http://www.google.com/imgres?imgurl...official&tbs=isch:1&ei=kdo4TPG8IsPbnAefsoycAw
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Click to collapse
Thanks for that. But I wonder how that port will provide audio with something like this?
http://cgi.ebay.com/Micro-USB-3-5mm...ewItem&pt=PDA_Accessories&hash=item35a8ba858b

ok, I am just curious, but you dont want to use the audio output on the top of the phone just to have an all in one solution, correct? Because I have no clue what would happen hooking that adapter up, curious though.

It has to be built into the port as well as the software to control it. I've got my money on it not working, since it's not supported by the phone. HTC ditched the USB headphones a while back because everyone complained about having to use special headphones and adapters, hence why they all have standard headphone jacks now.

elegantai said:
ok, I am just curious, but you dont want to use the audio output on the top of the phone just to have an all in one solution, correct? Because I have no clue what would happen hooking that adapter up, curious though.
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Exactly. Having a dock or boombox that would be plug and play would be nice. I'm actually considering something for the car that would replace a head unit. Maybe there would be a way to snag the digital audio from the HDMI port? Digging continues.
Worse case scenario, I use the USB port for power and bluetooth the audio.

I dont think it is possible through hdmi without a digital to analog converter, which are rather expensive. The hdmi out is pure digital goodness.

elegantai said:
I dont think it is possible through hdmi without a digital to analog converter, which are rather expensive.
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http://cgi.ebay.com/Digital-Audio-A...tem&pt=LH_DefaultDomain_0&hash=item5ada7c5484
ORLY?

Lol, I guess for me 50 bucks is rather expensive to free up a wire. But to each his own

elegantai said:
Lol, I guess for me 50 bucks is rather expensive to free up a wire. But to each his own
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Click to collapse
Have you seen what Apple charges for white cables? LOL! I think $50 works.

Lol, fair enough

HTC ExtUSB Micro?
I am looking for the same info.
Is the micro usb port on the evo just a standard 5 pin only?
The mini usb on the hero was the non-standard HTC ExtUSB with 11 pins. I loved this because I could make my own docks that included power and audio with only one plug.
Maybe the HTC micro b is analogous? HTC ExtUSB Micro?

I dont think so, it's only 5 pins. And I think the only reason HTC had the 11 pin was to provide the proper support for audio out. Since the evo has a 3.5 mm I dont think it is even possible to do that.

The Chris said:
http://cgi.ebay.com/Digital-Audio-A...tem&pt=LH_DefaultDomain_0&hash=item5ada7c5484
ORLY?
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Click to collapse
And how exactly do you intend to convert the HDMI to a digital RCA or TOSLINKi nterface as that box requires? Oh, another $50+ box? Yeah, that's what I thought. So, $100 or a cable that looks "silly". I know where my money would go...

The Samsung Fascinate has this audio/usb option. Their docking station has a micro-usb plug and then a USB (power) jack and a standard audio jack out. So it doesn't require any special decoder, there must be audio out pins just like in the iPhone/iTouch?

Take a peek at this photo of an Evo's circuit board. Specifically, the solder points for the microUSB port (including the ground/anchor points):
http://guide-images.ifixit.net/igi/22dlA5ZuptWCyvTX.huge (from http://www.ifixit.com/Teardown/HTC-Evo-4G-Teardown/2979/1 )
Count 'em. Eleven, just like extUSB on the Hero & other HTC phones. Looks like the Evo has what could legitimately be called a "HTC micro-extUSB" port, and not merely a standard "micro-USB" port.
Now... good luck trying to find a CABLE with all 11 contacts and wires on it. If it exists, Digikey probably has them... but god only knows where that needle might be in their million-part haystack (anyone who's ever tried finding a specific connector, even a common one, at digikey.com if you don't know its exact OEM part number knows the joy I'm describing...)
Chances are, there's a (~2.7v) serial UART sitting on two of those pins, too.
(update: found a few references to "Micro extUSB" with regard to the Desire, including http://windowsmobilesmartphone.forumcommunity.net/?t=39522724 )

bitbang3r said:
Take a peek at this photo of an Evo's circuit board. Specifically, the solder points for the microUSB port (including the ground/anchor points):
Click to expand...
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Isn't that the HDMI connector?

hfarmer said:
Isn't that the HDMI connector?
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Click to collapse
Nope. It's definitely the Micro USB connector. I know this is an old thread, but I've been trying to do some research on this port in hopes of hacking my own car dock.
I've found some additional information on this Micro ExtUSB™ port. The HTC Incredible uses it for its TV Out port. See this Thread on AndroidForums. There's even a special cable for the Incredible at HTCPedia. I'm very tempted to buy the cable to use it as a sort of breakout box to experiment with this port.

bitbang3r said:
Take a peek at this photo of an Evo's circuit board. Specifically, the solder points for the microUSB port (including the ground/anchor points):
http://guide-images.ifixit.net/igi/22dlA5ZuptWCyvTX.huge (from http://www.ifixit.com/Teardown/HTC-Evo-4G-Teardown/2979/1 )
Count 'em. Eleven, just like extUSB on the Hero & other HTC phones. Looks like the Evo has what could legitimately be called a "HTC micro-extUSB" port, and not merely a standard "micro-USB" port.
Now... good luck trying to find a CABLE with all 11 contacts and wires on it. If it exists, Digikey probably has them... but god only knows where that needle might be in their million-part haystack (anyone who's ever tried finding a specific connector, even a common one, at digikey.com if you don't know its exact OEM part number knows the joy I'm describing...)
Chances are, there's a (~2.7v) serial UART sitting on two of those pins, too.
(update: found a few references to "Micro extUSB" with regard to the Desire, including http://windowsmobilesmartphone.forumcommunity.net/?t=39522724 )
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I believe your looking at the micro hdmi port, the usb is indeed 5 pins.

I'm pretty certain it's just a standard 5-pin MicroUSB port. Just shining a flashlight into the port, I only see 5 pins.
It would be really nice if there was a standard connector that supported power, USB, audio, and some sort of control bus. The Apple dock connector is a bit big, but it allows for a lot more than microUSB can do. Though I guess it could be done over USB if there was a standard for it.

USB Port - Proprietary???

I have a Tilt 2, had it since last March. I've had to have it replaced twice already due to the USB jack getting to the point where it no longer functions except to charge, it won't connect via cable to the pc, nor will it work with the multi-function adapter provided at purchase by HTC.
Is it dangerous/wrong to use after-market chargers/adapters/standard usb cables with the phone??? Am I damaging the usb port by using car chargers/wall chargers, etc that I got from ebay, or is this just a matter of bad design?

It isn't. It looks different, but its not. I believe its ONLY notched like that because not only is that port a USB port, but it also has a few extra 'wires' for connecting a headset to it. (via the HTC adapter)
Of course, the corporate answer is.. Yes using a non HTC Power Adapter could damage your TP2. But unofficially, I doubt it.
I've stopped buying over priced chargers for my phones and will by any Mini-USB charge that I can find. Most will work. The voltage does not matter anymore since USB is a set standard, and any modification to the voltage would not comply to the USB standard, and it wouldn't be USB then.
I've had the same issue with my TP2 (and with the HTC Wing I had before). Check the power adapters itself. I have a RAZR charger I've been using for years, and I think the plug itself has just about had it.
Also take some canned air to the USB port on the phone (while it is powered off and battery removed) and try to remove debris from the USB port. The minuscule little piece of dust could cause a bad connection. Electronic cleaner works better at this. (its LIKE canned air but contains alcohol-based cleaner in the "air". It's available at Radio Shack.) This fixed the problem I was having with my Wing.
And finally, it may just be time for a new phone. The ports just plain wear out from daily plugging and unplugging that adapter in. One slight bend and the port is all out of alignment.. (does it wiggle instead of being a firm connection when you plug in the charger?)
This is why I am waiting for the day these induction charges are standard in phones.. No more power adapters!

I just use a normal USB plug for mine. I don't even fool with the one it came with so I don't get that one confuse with something else. They only notched it like that to make a buck, I would guess.

If you are trying to use Mini USB headphone, only the ones made by HTC will work as it has 11 pins. Standard Mini USB has only 5 pins.

[Q] Audio input for the Xoom (perhaps via USB ?)

Hi all,
I think it's safe to say we all hate the 30 pin proprietary connectors on devices like the ipad.
My only concern is, how capable will the USB port on the xoom be. My immediate requirement would be Audio-in.
Do you think I may EVENTUALLY be able to connect a USB-based audio interface (for example: the Griffin iMIC ), once USB support on xoom improves?
I'm already disappointed that we can't charge over USB. I just hate to think that our only accessories will be the CRAPPY portfolio case and dock. Accessories matter.

orcad007 said:
Hi all,
I think it's safe to say we all hate the 30 pin proprietary connectors on devices like the ipad.
My only concern is, how capable will the USB port on the xoom be. My immediate requirement would be Audio-in.
Do you think I may EVENTUALLY be able to connect a USB-based audio interface (for example: the Griffin iMIC ), once USB support on xoom improves?
I'm already disappointed that we can't charge over USB. I just hate to think that our only accessories will be the CRAPPY portfolio case and dock. Accessories matter.
Click to expand...
Click to collapse
USB charging is limited to 5v no matter what the connector (coming from a computer). Thats why you can't charge the i*ad over USB either. I think it made since to have 2 separate plugs so people don't get confused.

jdenman03 said:
USB charging is limited to 5v no matter what the connector (coming from a computer). Thats why you can't charge the i*ad over USB either. I think it made since to have 2 separate plugs so people don't get confused.
Click to expand...
Click to collapse
Actually The i*ad does charge on 5 volt, it is the current that is the problem. Most devices (laptops) can not provide the current required.... I have a 2amp 5volt USB charger that I use to use with my i*ad. Would love to use it with the Zoom....

I think it might have audio out via USB cause while docked on the Moto dock there is a headphone out. The only connections to the Xoom are USB and two pins presumably for charging.

micro female/male hdmi and usb for Lapdock

I bought these on ebay. The HDMI is short but worked but when I connect both cables to lapdock, the USB is not being recognized so the keyboard/mouse is not working. I want this just to act as an extension so I can use full lapdock abilities with cables. Any idea what's going on (cable charges on plug but does not charge on lapdock)? Maybe someone has better usb cables.
fixed the link:
http://www.ebay.com/itm/29059482363...X:IT&_trksid=p3984.m1497.l2649#ht_3046wt_1508
http://www.ebay.com/itm/36042990934...X:IT&_trksid=p3984.m1497.l2649#ht_2333wt_1010

links appear to be broken...
From your title I've been looking for these (or similar) cables for a long time and have been unsuccessful. However I have yet to try them.

Fixed the link
http://www.ebay.com/itm/29059482363...X:IT&_trksid=p3984.m1497.l2649#ht_3046wt_1508
http://www.ebay.com/itm/36042990934...X:IT&_trksid=p3984.m1497.l2649#ht_2333wt_1010

i don't think it will work either way, tried a few things like this with no avail.

why wouldn't they? Cheap build quality that doesn't include the data wires? Hell I'll be willing to splice two cables together to get our desired effect, the only problem is that cords with a female micro usb are incredibly hard to come by

So that is what you think it is? No data on the usb cables.
Sent from my MB860 using XDA App

mamoranto said:
So that is what you think it is? No data on the usb cables.
Sent from my MB860 using XDA App
Click to expand...
Click to collapse
the only reason that is my suspicion is because there are many "charging" products out there that don't really need data. Why there would be a need for such a small charging extension cable is beyond me, but it's the only solution I can think of, but I have no way of confirming or denying it either. The ebay descriptions seem to imply that the data wires are there, but we all know how reliable ebay can be...
Another idea I had was that it might be sensing the resistance in the cable, since, if I remember correctly, that was how some think/though the car dock puts the atrix into car mode without a magnet as is/was commonly used. Again these are just ideas.
Or the cable is just so poorly made that it's defective...I honestly have no clue

Has anyone got full lapdock capabilities using extension cables? I can only get the screen working and not the mouse and keyboard.

The HDMI extender was the hard one to find. There are other micro USB extenders out there, theoretically with all wires connected....
http://www.usbfirewire.com/uextendmicrob.html
Kind of makes me wish i hadn't hacked up my lapdock to work with the Otterbox

Where did you get your HDMI extender? I got mine from All4Cellular but it's quite short. Will have to get another HDMI one if the usb cable you recommended works.

mamoranto said:
Where did you get your HDMI extender? I got mine from All4Cellular but it's quite short. Will have to get another HDMI one if the usb cable you recommended works.
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If you're asking me, i didn't. I was referring to the ebay link in the third post.

grevedan said:
The HDMI extender was the hard one to find. There are other micro USB extenders out there, theoretically with all wires connected....
http://www.usbfirewire.com/uextendmicrob.html
Kind of makes me wish i hadn't hacked up my webtop to work with the Otterbox
Click to expand...
Click to collapse
before I read that post, I was looking around the forums and the web yesterday well into the night. here are some of the things I've found that might be relevant to everyone (and it might possibly be cheaper, though more diy).
Micro USB stuff:
I have no idea why this exists http://www.dealextreme.com/p/micro-...r-cable-for-blackberry-9900-black-30cm-107901
I have no idea why this only has 4 pins http://www.sparkfun.com/products/9614
http://www.sparkfun.com/products/10031
mamoranto said:
Where did you get your HDMI extender? I got mine from All4Cellular but it's quite short. Will have to get another HDMI one if the usb cable you recommended works.
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Click to collapse
Here's what I am thinking about doing:
http://www.ebay.com/itm/140626354628#ht_2821wt_1177 or http://www.ebay.com/itm/Micro-HDMI-...ultDomain_0&hash=item415eac6dc0#ht_2821wt_980
http://www.amazon.com/HDMI-Female-M...YPB4/ref=sr_1_2?ie=UTF8&qid=1329854686&sr=8-2
then the hdmi cable that came with our phone:
http://www.amazon.com/Motorola-Stan...QTA8/ref=sr_1_8?ie=UTF8&qid=1329854856&sr=8-8

The HDMI certainly looks like it may work but the reason I didn't buy that product from ebay a few weeks ago was because it was $50. Now miraculously, it's only $6. Maybe I'll get that if the USB cable I just bought that was suggested works a few posts back.

misiek93 said:
why wouldn't they? Cheap build quality that doesn't include the data wires? Hell I'll be willing to splice two cables together to get our desired effect, the only problem is that cords with a female micro usb are incredibly hard to come by
Click to expand...
Click to collapse
This micro usb extension cord explicitly states that all 5 wires are connected (compatible with droid bionic for the purpose of docking with a case on the phone):
http://www.ebay.com/itm/Micro-USB-E...395?pt=LH_DefaultDomain_0&hash=item335d13272b
I bought the HDMI extension cable and the USB cable above. I have a lapdock so I'll post if it works.

everything asked/answered in here is already covered in the original thread:
http://forum.xda-developers.com/showthread.php?t=1376679

robrj said:
This micro usb extension cord explicitly states that all 5 wires are connected (compatible with droid bionic for the purpose of docking with a case on the phone):
http://www.ebay.com/itm/Micro-USB-E...395?pt=LH_DefaultDomain_0&hash=item335d13272b
I bought the HDMI extension cable and the USB cable above. I have a lapdock so I'll post if it works.
Click to expand...
Click to collapse
The HDMI cable seems to work. On the lapdock, with just the HDMI cable hooked up, it functions like it was it's an entertainment center.
The USB cord will need to be modified a little bit. I can't get it to seat right on the USB jack of the dock. I'll need to shave it down a bit as it doesn't sit down snugly.

robrj said:
The HDMI cable seems to work. On the lapdock, with just the HDMI cable hooked up, it functions like it was it's an entertainment center.
The USB cord will need to be modified a little bit. I can't get it to seat right on the USB jack of the dock. I'll need to shave it down a bit as it doesn't sit down snugly.
Click to expand...
Click to collapse
I ordered the USB cable and experience this same problem, though I am waiting for my hdmi parts to come in (by April 6th I should have all my parts...). The cable itself works flawlessly as a micro usb extension cable when connecting it to the computer.

again as mentioned in the other thread, you want to be careful with the 5v coming out that micro hdmi port. for connecting back to your phone would be no issue, as the phone charges using this voltage, but hooking the lapdocks micro usb up to a host device probably wont appreciate the 5v coming back up the cable, where normally the usb device would be pulling power from said host, not providing it.
one suggestion is to just clip the red wire inside your micro usb cable/adapter.
btw the adapters i use do fit snugly side by side, without modification.

I've been following this thread for a little while now, and I wanted to share something I found.
I was looking at the Motorola Travel Webtop adapter. And I was curious to see whether it could be tweaked to suite our needs. I naively thought/hoped that I could flip the connectors in the device to make a small adapter to connect the Atrix to newer Lapdocks. Unfortunately as you can see in the pictures below (sorry not enough posts to link to the pictures) the two connectors are connected via a PCB not wires or a ribbon cable. Although I still have high hopes that I can de-solder the HDMI and USB connectors, and use a small length of flat ribbon cable to connect them and then re-positions the connectors in the case, to build a micro adapter to use the Atrix on the newer Lapdocks. Should this fail this will at least prevent others from making the same mistake, and solve the mystery of what's really inside the Webtop Travel adapter.

Do any one know if this Micro HDMI Cable would work for Lapdock.
http://www.ebay.com/itm/1-Feet-HDMI...s_Adapters&hash=item416612cecb#ht_1149wt_1187
Description says for Asus tf201 MEMO ME171.
I believe all Cables are standard. Can this used to Atrix 4g with Lapdock?
I have otterbox case for Atrix and don't want to Remove cover everytime to plug in Lapdock.

USB Cable Question

So I just got my Galaxy Nexus from ebay. Only problem is that the seller sent the phone with a black berry usb cable. Can I still use this cable to root it, unlock bootloader, etc?

USB cable is USB cable. If you plug it in and its recognized by the PC, you can use it.

My GNex doesn't even like the cable that came with my DX. I can charge from the wall with it, but nothing happens if I try to USB with it.
I would recommend getting a "real" cable.

consultant.ben said:
I would recommend getting a "real" cable.
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lol @ this... I'd probably recommend a BlackBerry cable over a Samsung one .

Awesome, thanks everyone.

martonikaj said:
lol @ this... I'd probably recommend a BlackBerry cable over a Samsung one .
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Click to collapse
lol all you want, I cannot explain why the factory cable for my DX will charge my GNex from the wall, but will not allow my computer to see it.
Can you?

consultant.ben said:
lol all you want, I cannot explain why the factory cable for my DX will charge my GNex from the wall, but will not allow my computer to see it.
Can you?
Click to expand...
Click to collapse
Nope, high chance that a cable that old is worn out or defective. But saying that a BlackBerry cable isn't a "real cable" is hilarious.
I've had absolutely no issue using several HTC cables, HP Touchpad cable, or even the USB cable from my Logitech mouse to connect my phone to a PC or charge.

Ok, I see what happened here. When I put real in quotes, I did not mean that the BB cable was junk, or that BB hardware (doubt they manufactured the cable though) is junk.
I should have said that I recommend getting the factory cable that comes with the GNex. That IS what any manufacturer recommends anyway.
Not sure how the old cable could be worn out though, because It works just fine for USB with the DX.

consultant.ben said:
lol all you want, I cannot explain why the factory cable for my DX will charge my GNex from the wall, but will not allow my computer to see it.
Can you?
Click to expand...
Click to collapse
Charging uses fewer wires in the cable than data uses.

foosion said:
Charging uses fewer wires in the cable than data uses.
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If this is true, then it means not all micro USB cables for our phones are created equal.
It would also lend credence to my suggestion to get the factory cable.

consultant.ben said:
If this is true, then it means not all micro USB cables for our phones are created equal.
It would also lend credence to my suggestion to get the factory cable.
Click to expand...
Click to collapse
If you have any doubts about how the cables are wired, google: usb cable wiring.
It's just four wires and plugs at either end. Not very complicated.