Database Develop

[HACK] Hardware HDMI/MicroSD Hack? Unused Pins/Connectors

HI! i've found some pics of the nexus 7 motherboard and some connectors seems to be unused... If you look at the "con1" (the one used for micro usb connection) it has 22 pins 0_o. Maybe we can find a hardware hack =D
More images here
We could do a "simple" (dangerous) test: HDMI has a hot plug detection pin, the only way to check is provide one pin with +5v dc and check if any other pin sends a ddc query.... but how can we find the hotplug pin (if there's any)?
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From the teardown it was pretty clear there was space for the rear camera as well as HDMI.
The IO presenters were using units with HDMI, so it was probably the same motherboard, populated.
You would have to be a hard-core hacker to want toi add your own HDMI. No idea what is missing beside header and connector. Probably not as bad as adding MHL
I am happy living without HDMI.

Maybe I will never use the hdmi connector but hacking electronical things when i have to hack biological ones every day is a nice way to spend the time xD

Israafiyl said:
Maybe I will never use the hdmi connector but hacking electronical things when i have to hack biological ones every day is a nice way to spend the time xD
Click to expand...
Click to collapse
6 billion dollar men?

Caliyork said:
6 billion dollar men?
Click to expand...
Click to collapse
Nope =P 6 billion dollar mice xD
Biotech

Google also plugged the nexus 7 into some kind of docking station to project the screen onto the wall for the visitors on Google io conference..seems they have a version with video output like HDMI
Sent from my HTC Desire using xda app-developers app

There has been an image of a Nexus 7 with a HDMI out.

ben1066 said:
There has been an image of a Nexus 7 with a HDMI out.
Click to expand...
Click to collapse
Source please
Sent from my HTC Desire using xda app-developers app

Can't back it up right now but will frantically google to find it.. But I remember reading that it had the hardware for mhl but currently not enable in software?
but just tested my jellybeaned gnex and that works fine with mhl so not sure how much truth there is to that.

I can vouch for the photo of a Nexus 7 with an HDMI port, as well as a comment from a presenter that the special units they were using for presentations had HDMI.
No, I can not provide any links. That was thousands of pages ago...
I do not believe the Nexus 7 has the MHL chip, or any provision for it. Asus is not listed as a MHL provider.
Samsung (Nexus) is a MHL provider, so the hardware there would not be a surprise.

In that teardown review (where the OP got that image, I believe), they mistakenly said it supported HDMI out and included a picture of the HDMI cable from the nexus Q. They later retracted that comment.
That might be the source of the confusion.

There was at least one actual picture of a Nexus 7 with an HDMI port on the bottom.
I think a reviewer got their hands on a presenter's unit.

The image you're looking for is in this thread:
http://forum.xda-developers.com/showthread.php?t=1736916
The internel dev versions (the ones used for presentations) had mini hdmi.
So, it does make sense that theres space on the board.

Thank you for that picture link! I searched everywhere for that...
At least that is one less reason to think I have lost my mind...

I'd love to be able to solder on an sdcard slot, if that's all that's needed. It's generally pretty easy to solder to headers if you're careful about it.
Sent from my Nexus 7 using Tapatalk 2

From the teardown, I don't recall seeing any space for an SD card.
Rear camera - yes, HDMI - yes, but not SD Card.
I could be mistaken...
Also, the external storage problem has been pretty much solved with a USB OTG cable and stickmount.

we could solder a slod for an additional sd card... there's enaught space to fit in a sd card without "external" access.

How in the world has this thread not been moved/locked yet? Obviously not development, and hardly an original topic.

MWBehr said:
How in the world has this thread not been moved/locked yet? Obviously not development, and hardly an original topic.
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Click to collapse
we're counting pins and waiting for more info =P
look here: http://guide-images.ifixit.net/igi/KjNsrjlvHZdFWEGF.huge
we have 14 free pins and an hdmi data connection requires only 12 wires + 5v + grnd.
i'm looking for someone who can do some simple tests on the unused pins.
when i will have the nexus 7 i'll do it by myself at uni but maybe someone who have the I/O version now could do something meantime.

Looks pretty interesting to me hope we cram a sd card In there somewhere.

MHL adapter in back of dock

SImple question,
if you buy a charging dock can you simply put the MHL adapter in the back into the micro usb port and have it charge/video out at the same time?
clearly the new 11 pin dock for an s3 or n2.
i couldnt see why this wouldnt work but just want to make sure. im planning on a nice little setup via HDMI and bluetooth keyboard/mouse.

The setup you describe worked with my galaxy tab 7" plus but not with my galaxy s3, so I'd be interested in the answer to this aswell

For me, i search the Saint Graal, a charging dock and transfer data with :
- Audio line-out
- HDMI
- USB
- Port SD ...
It's only a dream ???

it will work with Phones that doesn't have the extra pins that Samsung put in the micro USB port in the Note 2/S3 unless that dock has these pins unfortunately it wont work.

[email protected] said:
For me, i search the Saint Graal, a charging dock and transfer data with :
- Audio line-out
- HDMI
- USB
- Port SD ...
It's only a dream ???
Click to expand...
Click to collapse
i dont need usb or port SD or audio out, just want dock, i havent seen any HDMI docks for the note 2 yet.
Hell Guardian said:
it will work with Phones that doesn't have the extra pins that Samsung put in the micro USB port in the Note 2/S3 unless that dock has these pins unfortunately it wont work.
Click to expand...
Click to collapse
^^would the samsung adapter 5-11pin adapter work that you can buy for a few bucks?
i feel this is reasonable since a dock is simply an extension in some plastic.

The official smart dock has:
HDMI
3USB ports (you could plug in an sd card adapter)
3.5mm out
micro usb sync/charge in
cost 64.95 euros i think

duykhang524 said:
The official smart dock has:
HDMI
3USB ports (you could plug in an sd card adapter)
3.5mm out
micro usb sync/charge in
cost 64.95 euros i think
Click to expand...
Click to collapse
ohhh that sounds awesome! i thought the other guy was saying, that was the stuff he wanted in a dock and that was only a dream.

xxsupergman25xx said:
ohhh that sounds awesome! i thought the other guy was saying, that was the stuff he wanted in a dock and that was only a dream.
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did a quick google and this seems to be the case...err, dock.
http://www.gosmartdevice.com/official-accessories-for-galaxy-note-2/
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that means the note 2's usb port can work as an MHL and USB OTG port at the same time. i hope someone comes up with a portable dongle that does this.

oh wow, thats exactly the type of thing im looking for. thanks!

xxsupergman25xx said:
ohhh that sounds awesome! i thought the other guy was saying, that was the stuff he wanted in a dock and that was only a dream.
Click to expand...
Click to collapse
Yes, it was me
Great news !!!
---------- Post added at 10:03 PM ---------- Previous post was at 09:58 PM ----------
finalhit said:
did a quick google and this seems to be the case...err, dock.
http://www.gosmartdevice.com/official-accessories-for-galaxy-note-2/
that means the note 2's usb port can work as an MHL and USB OTG port at the same time. i hope someone comes up with a portable dongle that does this.
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We have a date, shop and prize ?

Kidigi also do one: http://www.kidigi.com/product_lv2.php?pid=1418 but it apparently won't sync with a PC, so it's just an MHL dock. Doesn't look like it'll charge the phone well either as it outputs 500mA

homemade reverse side OTG adapter.

I often use on the go adapter for usb sticks and joysticks. The problem I find is that the micro adapter justs acts as a nice lever that is going to kill my socket. So I decided to adress the problem by spreading the load while at the same time tucking it out the way. Funny that when I came into the forum there seems to be threads about making some tiny little usb/sdcard adapters, obviously the smaller the better.
My solution is not small but when I fall asleep watching a movie and me nexus ends up on the floor hopefully nothing will snap!
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It is comfortable and makes me nexus much more easy to handle while using OTG.
what's the verdict?
Update...
Power adapter addon.
Was going to make another adapter that included a socket for charging. But infact the original adapter already allows for charging using timurs kernel. But of course I could only charge or use otg but not both. I made this addon that attaches to the original and allows power and otg.
It is quite bulky! I will probably make an all in one at some point.
As for a tutorial... well wiring diagrams for making otg cable can be found all over the web. All I did was use the stripped down to the bare bones usb plugs and sockets, covered nexus in cling film, then used some milliput (can be bought in hardware shops, like plasticine bet sets hard) to fashion the adapter. Bobs your uncle.

Looks good, and does solve that issue.
Another good idea would be a non-OTG version for charging while in use.
Either way, very nice... :thumbup:

Thanks danvee, i had been thinking of one with charging capability as i use timurs otg kernel which allows charging and otg at the same time. I had not however thought of making one that simply charged though, great idea thanks.
Sent from my Nexus 7 using Tapatalk 2

Keep us posted... :thumbup:

Neat, well engineered solution.

Awesome!
I'm definitely interested in a tutorial.

Updated first post.
Sent from my GT-I9100 using Tapatalk 2

Where to buy?
I am Weasl
––––––––––––
and you've been PAC'd by a Note 2

All information is in the OP.

joesnose said:
I often use on the go adapter for usb sticks and joysticks. The problem I find is that the micro adapter justs acts as a nice lever that is going to kill my socket. So I decided to adress the problem by spreading the load while at the same time tucking it out the way. Funny that when I came into the forum there seems to be threads about making some tiny little usb/sdcard adapters, obviously the smaller the better.
My solution is not small but when I fall asleep watching a movie and me nexus ends up on the floor hopefully nothing will snap!
It is comfortable and makes me nexus much more easy to handle while using OTG.
what's the verdict?
Update...
Power adapter addon.
Was going to make another adapter that included a socket for charging. But infact the original adapter already allows for charging using timurs kernel. But of course I could only charge or use otg but not both. I made this addon that attaches to the original and allows power and otg.
It is quite bulky! I will probably make an all in one at some point.
As for a tutorial... well wiring diagrams for making otg cable can be found all over the web. All I did was use the stripped down to the bare bones usb plugs and sockets, covered nexus in cling film, then used some milliput (can be bought in hardware shops, like plasticine bet sets hard) to fashion the adapter. Bobs your uncle.
Click to expand...
Click to collapse
.[/QUOTE]
original. cool. I like.

Pretty cool that you've designed it to follow the curve of the tablet. I like it

Very nice. I have wondered why this doesn't exist for retail purchase...

[Q] Xperia V: Charge and use USB Host Cable at the same time?

Hi everyone,
has anybody successfully tried to use the docking station connector to charge the Xperia V while using the USB port to add an external flash drive?
I'm using my broken Xperia V as a web server and I'd like to add more storage.
Thanks in advance!
Regards

DIY USB OTG With Charger ENABLE
grisu59964 said:
Hi everyone,
has anybody successfully tried to use the docking station connector to charge the Xperia V while using the USB port to add an external flash drive?
I'm using my broken Xperia V as a web server and I'd like to add more storage.
Thanks in advance!
Regards
Click to expand...
Click to collapse
you can try customize USB-On-The-Go (OTG) with charger enable...
a normal USB OTG connected Sense/ID together Ground to work USB OTG only
to enable charger you need 100k ohm resistor connect it between Sense/ID and Ground
.....it should be work....but it's quite mesh up
I attach some picture....(sorry for my english).....
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Have a fun with your DIY

Option is to use Sony Ericsson dk10 live dock station, like me, which has no problem charging the phone, and attach a flash drive to dock and thus be used as a network drive even or as you decide. But the price of this dock at the moment is about 25$.
This is just my opinion and my practice.
Sent from my LT30p using XDA Premium 4 mobile app

fiq29_! said:
you can try customize USB-On-The-Go (OTG) with charger enable...
a normal USB OTG connected Sense/ID together Ground to work USB OTG only
to enable charger you need 100k ohm resistor connect it between Sense/ID and Ground
.....it should be work....but it's quite mesh up
I attach some picture....(sorry for my english).....
View attachment 2666370
Have a fun with your DIY
Click to expand...
Click to collapse
Have you thried such a cable yourself? I saw some cables with additional power connector on eBay, but the descriptions told nothing about charging the phone. Does a DIY cable really allow the charging of the phone?
Monipeev said:
Option is to use Sony Ericsson dk10 live dock station, like me, which has no problem charging the phone, and attach a flash drive to dock and thus be used as a network drive even or as you decide. But the price of this dock at the moment is about 25$.
This is just my opinion and my practice.
Click to expand...
Click to collapse
This also sounds quite interesting. I think I'll give it a try and test if it works with the XV, too. Thank you!

DIY USB OTG With Charger ENABLE
grisu59964 said:
Have you thried such a cable yourself? I saw some cables with additional power connector on eBay, but the descriptions told nothing about charging the phone. Does a DIY cable really allow the charging of the phone?
Click to expand...
Click to collapse
yep... I already try and it working but......USB OTG with CHARGER ENABLE cannot work without external power.... it was standard circuit design which USB mini already support to become device or host that why MicroUSB connector have 5 pin (with sense) especially xperia mostly using female MicroUSB type A/B connector
I attach my picture that I have tried I use 1 TB external harddisk on my Xperia V
more info about USB http://en.wikipedia.org/wiki/USB

What type of connector is this?

I've lost the charging cable for my motorcycle Bluetooth unit and after about 20mins googling to find a new one with no success I thought I'd come and ask you clever chaps to see if you could shed any light !!
It smaller than both a micro and a mini usb, will I be able to buy a replacement or is this some sort or proprietary port? I'll include a pic below for your perusal !!
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https://imgur.com/gallery/HNVRBRL
Can anyone offer any advice as to what type of connector this is ?? https://imgur.com/gallery/HNVRBRL

Hum, don't seem to be able to post a pic or a link... do I not have to necessary privileges?
Or am I just doing it all wrong??

d.badgio said:
Hum, don't seem to be able to post a pic or a link... do I not have to necessary privileges?
Or am I just doing it all wrong??
Click to expand...
Click to collapse
I had figured out how to see the image...
You just need to copy the image link itself...
As far as the connector... It looks like it's a USB Type C. The cable your trying to use is a Micro USB.
Their very different and I've seen them get confused and even ruined the two.
Good Luck!
~~~~~~~~~~~~~~~
Unless asked to do so, PLEASE don't PM me regarding support. Sent using The ClaRetoX Forum App on my Apple Macintosh.

No it is mini USB the one which was before micro USB.
Sent from my MI 8 using Tapatalk

I used the micro usb cable for comparison in the pic, it's not mini or micro usb it's actually smaller than both...
My concern is that it's some sort of propietary port that in not going up be able up get hold of.

d.badgio said:
I used the micro usb cable for comparison in the pic, it's not mini or micro usb it's actually smaller than both...
My concern is that it's some sort of propietary port that in not going up be able up get hold of.
Click to expand...
Click to collapse
I believe I might have that connector stored away. What manufacture is the Bluetooth unit? If you can't find the cable you need with that connector let me know and I'll try to find it. If I have it I'll send it to you.

I m not sure, but it looks similar to the micro hdmi port that my sony Xperia had... Ages ago... Please check it...
https://encrypted-tbn0.gstatic.com/...ln-BBpjosmxYH39XTYtgetaWkST12kt7B9oUkDtN5TO6w

Looks similar to my charging cable for my sony cybershot camera
​
Ibuprophen said:
I had figured out how to see the image...
You just need to copy the image link itself...
As far as the connector... It looks like it's a USB Type C. The cable your trying to use is a Micro USB.
Their very different and I've seen them get confused and even ruined the two.
Good Luck!
~~~~~~~~~~~~~~~
Unless asked to do so, PLEASE don't PM me regarding support. Sent using The ClaRetoX Forum App on my Apple Macintosh.
Click to expand...
Click to collapse

My money is on the mini HDMI cable port.
Jason

That is ether Mini USB B 4pin, and before you dismiss it I know it is not Mini B 5pin that we all know it is not.
https://www.monoprice.com/product?p_id=106
Otherwise it is as someone else said and is the same Mini B that is used on Sony Cyber Shot cameras. This is the one I think it is
Ibuprophen said:
I had figured out how to see the image...
You just need to copy the image link itself...
As far as the connector... It looks like it's a USB Type C. The cable your trying to use is a Micro USB.
Their very different and I've seen them get confused and even ruined the two.
Good Luck!
~~~~~~~~~~~~~~~
Unless asked to do so, PLEASE don't PM me regarding support. Sent using The ClaRetoX Forum App on my Apple Macintosh.
Click to expand...
Click to collapse

UC-E6
Hey, isn't that a UC-E6 (8 pin mini USB) connector used on a lot of digital cameras?
Google 'UC-E6 cable' for comparison.

Micro HDMI i think
https://images.app.goo.gl/UG9kivyREpccUBPo6

That is NOT a usb-c port. What u r trying to USE is a micro-usb. Idk about the other one tho.
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