Database Develop

Nexus 7 Teardown

Nexus 7 Teardown @ ifixit
Here she is, the motherboard:
NVIDIA T30L Tegra 3 processor
Hynix HTC2G83CFR DDR3 RAM
Max 77612A inverting switching regulator
AzureWave AW-NH665 wireless module
Broadcom BCM4751 integrated monolithic GPS receiver
NXP 65N04
Invensense MPU-6050 gyro and accelerometer
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Wow. For some reason I thought there would be more stuff....Or that some things would be bigger. :/
EDIT: Nevermind. It just doesn't look like much when it's all out like that.

What does this mean exactly?
Although the official Nexus page says there's a speaker in the back, we clearly see a pair of drivers.
Drivers? No Speaker?

Atmazzz said:
What does this mean exactly?
Although the official Nexus page says there's a speaker in the back, we clearly see a pair of drivers.
Drivers? No Speaker?
Click to expand...
Click to collapse
I'm not sure. They're referring to the two black rectangular mesh/screen objects towards the bottom. I'm guessing they mean a type of electrostatic transducer?

Well that's it then, no more speculation regarding MHL.
No sight of any MHL chip/transmitter on the motherboard, and the demo unit on stage at Google I/O was indeed a custom one that either uses micro USB to VGA adapter or Nexus Q to mirror its screen.
Edit: Wait, but there is a micro USB to HDMI cable, I'm confused
Doesn't it require hardware support for MHL to work.

Nice to know it includes DDR3 RAM, apparatly the same model found in the 'MacBook Pro with Retina Display'.
Also Page 1 - Step 2 states
Initially, the Nexus 7 was criticized for its lack of HDMI output. However, the included micro USB-to-HDMI cable solves that problem.
Including this picture
Time to celebrate?

xthaox said:
Well that's it then, no more speculation regarding MHL.
No sight of any MHL chip/transmitter on the motherboard, and the demo unit on stage at Google I/O was indeed a custom one that either uses micro USB to VGA adapter or Nexus Q to mirror its screen.
Click to expand...
Click to collapse
In step 2 of the teardown there is a picture of the cable and they state "Initially, the Nexus 7 was criticized for its lack of HDMI output. However, the included micro USB-to-HDMI cable solves that problem."
Will the retail ones be the same as their white backed Google I/O attendee version though...

Thanks for sharing, I've been waiting for someone to break the Nexus 7 down.
Sent from my HTC Sensation 4G using xda premium

Big_Den said:
Nice to know it includes DDR3 RAM, apparatly the same model found in the 'MacBook Pro with Retina Display'.
Also Page 1 - Step 2 states
Initially, the Nexus 7 was criticized for its lack of HDMI output. However, the included micro USB-to-HDMI cable solves that problem.
Including this picture
Time to celebrate?
Click to expand...
Click to collapse
Surely not.. but would be funny if true..

Big_Den said:
Time to celebrate?
Click to expand...
Click to collapse
Looks promising!

ebwibble said:
In step 2 of the teardown there is a picture of the cable and they state "Initially, the Nexus 7 was criticized for its lack of HDMI output. However, the included micro USB-to-HDMI cable solves that problem."
Will the retail ones be the same as their white backed Google I/O attendee version though...
Click to expand...
Click to collapse
That's why I'm confused. How does it work without any MHL transmitter on board?
How come no other reviews mentioned the inclusion of this micro USB to HDMI cable, both the AnandTech and Engadget reviews say N7 do not support MHL. They surely must have been reviewing the same unit given out for I/O attendees. I hope ifixit test if the cable even work, was it a mistake that the cable is included in their box?

xthaox said:
That's why I'm confused. How does it work without any MHL transmitter on board?
How come no other reviews mentioned the inclusion of this micro USB to HDMI cable, both the AnandTech and Engadget reviews say N7 do not support MHL. They surely must have been reviewing the same unit given out for I/O attendees. I hope ifixit test if the cable even work, was it a mistake that the cable is included in their box?
Click to expand...
Click to collapse
Yeah. Why is ifixit the only one who makes note of this. It doesn't make sense.

Yeah it does look promising. Even if it doesnt include a cable in the box, I would hope you will be able to purchase it separately. It still quite funny we dont have any concrete information :laugh:

That looks like the PC connection cable. Note the regular USB male connector, and what looks like micro-USB male connector on the other end, despite what the HDMI label says.
If this were an adapter, the HDMI connector would normally be female, to be used with regular HDMI male-male cable.

xthaox said:
That's why I'm confused. How does it work without any MHL transmitter on board?
How come no other reviews mentioned the inclusion of this micro USB to HDMI cable, both the AnandTech and Engadget reviews say N7 do not support MHL. They surely must have been reviewing the same unit given out for I/O attendees. I hope ifixit test if the cable even work, was it a mistake that the cable is included in their box?
Click to expand...
Click to collapse
Whilst I think it is a mistake by iFixit, I am wondering about the technical side of things, does Tegra 3 not have any MHL stuff in it?

e.mote said:
That looks like the PC connection cable. Note the regular USB male connector, and what looks like micro-USB male connector on the other end, despite what the HDMI label says.
If this were an adapter, the HDMI connector would normally be female, to be used with regular HDMI male-male cable.
Click to expand...
Click to collapse
To me it looks like a microusb male connection on one end (to be plugged into the Nexus) and a full size HDMI male connection on the other end (to be plugged into a TV or receiver).

e.mote said:
That looks like the PC connection cable. Note the regular USB male connector, and what looks like micro-USB male connector on the other end, despite what the HDMI label says.
If this were an adapter, the HDMI connector would normally be female, to be used with regular HDMI male-male cable.
Click to expand...
Click to collapse
I thought with the dent on its side, it looks more like a micro-USB male connector, and on the other end with HDMI label, it also looks like a HDMI male connector, considering its relative size to the micro-USB end.

>To me it looks like a microusb male connection on one end (to be plugged into the Nexus) and a full size HDMI male connection on the other end
You're probably right. Anyway, below is the cable that normally comes with the I/O package. There is no other cable in the unboxing.
http://www.technobuffalo.com/compan...low-price/attachment/google-galaxy-7-charger/

What's with the HDMI cable reference in there? Thought it didn't have MHL or anything
Plus the smaller connector with the wide RIM looks like one of the cables you'd plug into the Q
EDIT: I'm not really convinced that it is a HDMI male connector

Slap-Yourself :) said:
I'm not sure. They're referring to the two black rectangular mesh/screen objects towards the bottom. I'm guessing they mean a type of electrostatic transducer?
Click to expand...
Click to collapse
This is how someone else explained it to me.
NeoteriX said:
By stereo speakers, I basically mean there are two drivers (speakers, same thing), one for the right channel audio, and one for the left channel audio.
As a practical matter however, the stereo effect will be nil or negligible because 1) there is almost no stereo separation (distance between speakers), and 2) when held in landscape, both channels will be only coming from one side.
Click to expand...
Click to collapse

USB OTG Cable host mode while charging anyone try this accessory?

I've searched and never seen an actual 'buyable' product linked on the forums so if this is a dup, I apologize.
Anyone try one of these and see if you can have your Nexus in host mode and charge at the same time?
Is the only option for the female Micro USB port to bring more charge to a usb device plugged in and not to bring charge
to the Nexus itself?
Two scenarios would make this ideal for me:
1.) using my usb xbox controller to play games yet still keeping my tablet charged
2.) using a usb thumb drive to play a movie while still keeping my table charged
I think this would be pretty cool if it worked but I don't know the technical details on if it can be done with our Nexus 7's:
http://www.ebay.com/itm/110931117836
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Looks like it's meant for providing power to the USB device you connect (e.g.. external hard drive) instead of to the Nexus7...

The eBay description says it provides charging the the micro-USB port. Only way to know is to buy it and try it out

Who's going to be the Guinea pig?
Sent from my Nexus 7

Hell, I'd do it, but I don't have a Nexus seven yet. LOL
I've been waiting for someone to get a working solution fit this before I purchase one. That and I need good 3.5mm sound quality and I've read its ****e on the Nexus 7.
Blasted from my HTC Rezound (Zone23s Newtified 3.2.1)

RED ZMAN said:
Hell, I'd do it, but I don't have a Nexus seven yet. LOL
I've been waiting for someone to get a working solution fit this before I purchase one. That and I need good 3.5mm sound quality and I've read its ****e on the Nexus 7.
Blasted from my HTC Rezound (Zone23s Newtified 3.2.1)
Click to expand...
Click to collapse
My sounds works fine, and I haven't even bothered getting the volume + app yet for tweaking. I think there's just no pleasing some ppl with a bare bones tablet like this one.
-Ara
Sent from my Nexus 7 using xda app-developers app

I have a OK Galaxy Tab in the dash of my car, and use the headset port for music, didn't want to upgrade without seeing one in person.
Hopefully some sort of dock solution will make Otg and charging possible and I can upgrade. Thanks!
Sent from my Transformer TF101 using Tapatalk 2

Ordered 1, but says shipping is between September 7 to September 20 haha

OTG and Charging is mutually exclusive, the OTG cable triggers the USB controller to send power out to a device, not receive power.
the pogo docks on the bottom of the device are also impossible to charge from as the nexus 7 has only been given one charging circuit, and that is the same one that OTG disables.
The only way to achieve something like this would be a physical battery hack where you splice in a charging circuit direct to the battery, without frying the phone maybe some unidirectional resistors, so that it can be simultaneously charged whilst powering the device.
I'm 99% certain of this information, and this is not to say someone might hack a kernel together one day

you might be able to install one of them batteries you can just set it on a charging pad and it will charge

barkerd25017 said:
you might be able to install one of them batteries you can just set it on a charging pad and it will charge
Click to expand...
Click to collapse
davidcampbell said:
OTG and Charging is mutually exclusive, the OTG cable triggers the USB controller to send power out to a device, not receive power.
the pogo docks on the bottom of the device are also impossible to charge from as the nexus 7 has only been given one charging circuit, and that is the same one that OTG disables.
The only way to achieve something like this would be a physical battery hack where you splice in a charging circuit direct to the battery, without frying the phone maybe some unidirectional resistors, so that it can be simultaneously charged whilst powering the device.
I'm 99% certain of this information, and this is not to say someone might hack a kernel together one day
Click to expand...
Click to collapse
I have a ZAGG battery pack I'm planning on trying this with and I will report back I also have that same pad and I can get a fairly cheap charger to place on the matt as you say. Either way that wouldn't be very convenient, but I'll check it out
Sent from my Galaxy Nexus

davidcampbell said:
OTG and Charging is mutually exclusive, the OTG cable triggers the USB controller to send power out to a device, not receive power.
Click to expand...
Click to collapse
Wrong. https://github.com/teamhacksung/and...mmit/4c1c965b168bc4488ef66889e1c8933bc1b3de46 for an example on Galaxy S2/Note
As to whether the adapter linked is a proper OTG ACA (they're VERY hard to find) and whether the grouper supports OTG ACA is unknown. It's something a kernel developer can probably implement.

Thanks Entropy512, I can see it working on other devices, that gives me hope... I might rig something up myself now, I've wanted to take a cheap usb keyboard plastic leather cover, and build in an extra battery, card reader and usb hub, now this might be theoretically possible

http://forum.xda-developers.com/showthread.php?t=1822653
I don't have a N7 yet, but when I get one I want to try that.
Sent from my SGH-I777 using xda app-developers app

I can confirm that simply splicing a standard OTG cable into the port and plugging in a power cord will not work. I thought I'd utilize the empty socket from where the rear camera was supposed to go, and try to fit the OTG-to-microSD set-up inside of the Nexus. I bought a salvaged USB/headphone port from a damaged Nexus off of Ebay for $1 and the smallest microSD adapter I could find. With the use of a ribbon cable from an old laptop, some trimming, and some REALLY careful soldering I was able to make it work... sorta. Stickmount sees the card and everything runs great, until you plug in a power cord. Then, it disables the microSD adapter, and even though Stickmount says it's there, no files are visible. Also, the Nexus won't charge with this arrangement.
It might work with a different set up, but simply mimicking the OTG cable will not allow a Stickmounted volume and when the charger is plugged in.
(BTW - To make everything fit, I had to use a Dremel to grind away some of the mid-frame area around the rear camera space. It's a tight fit, but keep in mind that until you have a spare mid-frame, like I do, you'll obviously void your warranty.)

ED2O9 said:
I can confirm that simply splicing a standard OTG cable into the port and plugging in a power cord will not work. I thought I'd utilize the empty socket from where the rear camera was supposed to go, and try to fit the OTG-to-microSD set-up inside of the Nexus.
...
Stickmount sees the card and everything runs great, until you plug in a power cord.
Click to expand...
Click to collapse
I tried this very thing, same results.

Has anybody tried charging through the pin connectors on the left side?

Mechanio said:
I tried this very thing, same results.
Click to expand...
Click to collapse
Same here, only I went a step further and added a 36k resistor from the ID line to ground and that didn't do anything either.

Hope all your work ends in success.
I would like to put this device as a car Entertainment system later. But charging and USB otg is a must.
NEXUS 7

It's a nice method to use in a couple of years your old Nexus 7 as a seedbox

[Q] MHL Lag with official Samsung Adapter

Has anybody tried the official Samsung MHL adapter with the Note 3 yet? I picked one up and it is laggy. The tv displays exactly what is on the phone but when hooked up to MHL the phone seems to lag. As in, if I look at the phone's screen it is lagging behind too. When I unplug the MHL cable, it stops lagging. Tried with some games and even the line that follows your fingers using swype lags. Anybody else try this and have this issue?

Note 3 has MHL?
I plugged it in with my MHL cable that came with my home theater receiver and nothing came up on screen.
On my Optimus G I just plug the cable in to the micro USB and bam it works.
Do we really need a special adapter?
Sent from my SAMSUNG-SM-N900A using xda app-developers app

Cloudmoose said:
Note 3 has MHL?
I plugged it in with my MHL cable that came with my home theater receiver and nothing came up on screen.
On my Optimus G I just plug the cable in to the micro USB and bam it works.
Do we really need a special adapter?
Sent from my SAMSUNG-SM-N900A using xda app-developers app
Click to expand...
Click to collapse
If it is a normal MHL cable you need the 5 pin to 11 pin adapter Samsung sells. I think I may have figured out my issue. Looks like I purchased the universal MHL 1 adapter from Samsung. Last night I ordered the MHL 2.0 adapter which hopefully will work out better as I've seen videos of people playing games without lag.

monkeymanx said:
If it is a normal MHL cable you need the 5 pin to 11 pin adapter Samsung sells. I think I may have figured out my issue. Looks like I purchased the universal MHL 1 adapter from Samsung. Last night I ordered the MHL 2.0 adapter which hopefully will work out better as I've seen videos of people playing games without lag.
Click to expand...
Click to collapse
How'd the new one work out? I am using a Chinese one I used with my gs3 and its perfect for videos but with games there is a fraction of a second lag that makes playing Mario impossible.
If better mhl cable fixed ur issue let us know thanks.

monkeymanx said:
If it is a normal MHL cable you need the 5 pin to 11 pin adapter Samsung sells. I think I may have figured out my issue. Looks like I purchased the universal MHL 1 adapter from Samsung. Last night I ordered the MHL 2.0 adapter which hopefully will work out better as I've seen videos of people playing games without lag.
Click to expand...
Click to collapse
The newer MHL 2.0 adapter has a higher refresh rate so that should resolve your problem.

i paid $11 for the 3 plug red wired mhl 2.0 setup on ebay ... works like a charm.
Sent from my SAMSUNG-SM-N900A using xda app-developers app

[Q] Samsung smart dock on Xperia z1?

Hey guys,
I was looking at the Samsung smart dock :
( can't insert link as I am a new Member)
And was wondering if it would work on the Xperia z1?
I know that the z1 supports MHL and OTG so I'm guessing it could work..
Also, I realise that the actual phone won't fit onto the dock properly but I really want hdmi out with at least 2 usb inputs, so I'm fine with using a micro usb male to female cable to run from the phone onto the dock.
This is my first post so let me know if I'm doing something wrong
Thanks in advance
- Dr. Klyde

It's a hardware issue actually, Samsung uses special usb connectors which can active both mhl and usb at the same time, not sure Sony does too...
Sent from my C5503 using Tapatalk

I use something like this and it works fine to have HDMI out, but never tried using the USB in at the same time.

You can use the usb as storage or only for charging while using hdmi?
Sent from my C5503 using Tapatalk

gregbradley said:
I use something like and it works fine to have HDMI out, but never tried using the USB in at the same time.
Click to expand...
Click to collapse
I heard that the USB input on that could only be used for power and nothing else.. :/

I think that's correct, as the HDMI output does not work unless there is AC power going to the Micro USB in.

shteren said:
It's a hardware issue actually, Samsung uses special usb connectors which can active both mhl and usb at the same time, not sure Sony does too...
Click to expand...
Click to collapse
Theres a cheaper version of the dock on ebay for $11 which has HDMI and USB (both full size) ports. I might buy it and try that one first.

A stupid question, how can I use the MHL cable and charge the Z1 in the same time? It is possible?

spam, delete

[Q] Samsung Smart Dock not working on NOTE 4

Just got in my Note 4 and noticed something...
I plugged in my new phone as I did to my Note 2, Note 3, Note 4. WAIT, when I plugged it into my Note 4, I get nothing, not a sound a light nothing!
So my question is.....
Does that mean that it was never supported and the Note 3 just squeezed by?

You scared me for a second. Works for me. Audio works in YouTube also.
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Does hdmi out work too?
Sent from my SGH-T889 using xda app-developers app

darekz said:
Does hdmi out work too?
Sent from my SGH-T889 using xda app-developers app
Click to expand...
Click to collapse
I'm using a Samsung MHL device. It doesn't work unless I connect power to it. This surprised me, since my Tab Pro 10.1 doesn't need the adapter to be powered. Interesting.

darekz said:
Does hdmi out work too?
Sent from my SGH-T889 using xda app-developers app
Click to expand...
Click to collapse
Yes. That's how I connected the dock to TV via HDMI. Unless you're talking about the HDMI dongle.
Sent from my SM-N900T using Tapatalk

Yep, no power through pc. At least it is still an hdmi dock. Loved it next to my pc. USB hub power why U no work.

aznmode said:
Yes. That's how I connected the dock to TV via HDMI. Unless you're talking about the HDMI dongle.
Sent from my SM-N900T using Tapatalk
Click to expand...
Click to collapse
Im glad to hear that my Note2 smart dock may have a little more life left. Can you tell if it outputs 720p or 1080p? Does screen stay on with mouse attached?
Sent from my SGH-T889 using xda app-developers app

darekz said:
Im glad to hear that my Note2 smart dock may have a little more life left. Can you tell if it outputs 720p or 1080p? Does screen stay on with mouse attached?
Sent from my SGH-T889 using xda app-developers app
Click to expand...
Click to collapse
Give me a few and I'll check the output. However I don't have a mouse with me so I can't test it.
Update : it's 1080p
Sent from my SM-N900T using Tapatalk

It would be nice if the hdmi out on the smartdock can rotate horizontally. Otherwise, I have to set my phone and dock down sideways to get horizontal.
If I use my MHL hdmi dongle, it will automatically go horizontal even tho my phone is in vertical position.

Does desk dock mode work with this dock or the regular multimedia desktop dock? http://www.amazon.com/Samsung-Galaxy-Multimedia-Desktop-Charging/dp/B0089VO71U

ickensai said:
It would be nice if the hdmi out on the smartdock can rotate horizontally. Otherwise, I have to set my phone and dock down sideways to get horizontal.
If I use my MHL hdmi dongle, it will automatically go horizontal even tho my phone is in vertical position.
Click to expand...
Click to collapse
That's a good point. I think it did it automatically on my note 3. I have to test it again when I get home.
Sent from my SM-N900T using Tapatalk

aznmode said:
That's a good point. I think it did it automatically on my note 3. I have to test it again when I get home.
Sent from my SM-N900T using Tapatalk
Click to expand...
Click to collapse
When used with Note2, screen turned off and image rotated on tv when mouse was attached because you no longer needed to use phone screen for input.
Sent from my SGH-T889 using xda app-developers app

JimSmith94 said:
Does desk dock mode work with this dock or the regular multimedia desktop dock? http://www.amazon.com/Samsung-Galaxy-Multimedia-Desktop-Charging/dp/B0089VO71U
Click to expand...
Click to collapse
That is from the same link you sent, If I am reading that correctly I would say yes by the following statement.
Automatically puts your handset into a customizable desktop mode, arranging your phone's key features for more convenient use when docked

Everything works, but USB charging.
Hello,
I originally started this post as I believed the dock stopped working, well in a sense it did.
The dock now requires a charge via wall plug. I have tested 1080, and I have tried with several other monitors/Tv's all work great. Mouse and Keyboard. Once I find one of my ext drives I will try and see if it still sees the ext HD.

owlensteed said:
That is from the same link you sent, If I am reading that correctly I would say yes by the following statement.
Automatically puts your handset into a customizable desktop mode, arranging your phone's key features for more convenient use when docked
Click to expand...
Click to collapse
That dock was made back in the S3 and Note 2 days. It worked great with my Note 2, and the USB 3.0 version worked great on my Note 3. My question is if it will also put the Note 4 into desktop mode? This phone is missing most of the accessory menu options for the dock.

Well what it does is trigger a dock was connected and
Looks for compatible apps. I.e. I have car home ultra. It will default to it. Not desktop mode and no option with either dock, that I can tell.

owlensteed said:
Well what it does is trigger a dock was connected and
Looks for compatible apps. I.e. I have car home ultra. It will default to it. Not desktop mode and no option with either dock, that I can tell.
Click to expand...
Click to collapse
Thanks for the info! I can't imagine why they left out desktop mode. As long as it triggers Car Home Ultra, there are some aftermarket dock apps that will work until/unless someone figures out how to add it back.

owlensteed said:
Hello,
I originally started this post as I believed the dock stopped working, well in a sense it did.
The dock now requires a charge via wall plug. I have tested 1080, and I have tried with several other monitors/Tv's all work great. Mouse and Keyboard. Once I find one of my ext drives I will try and see if it still sees the ext HD.
Click to expand...
Click to collapse
A question , does the keyboard from the Dock? I would like to use the dock with MHL and mouse connected to the USB dock .

I had issues with my note 3 on the samsung dock. Video will random come on and go out. It was doing it so much, it was not usable anymore.
After lots of experimenting, I figured out the issue. The power supply for the samsung dock is 2 amps. Apparently the Note 3 uses more juice than the note2 so power requirements for the note 3 is not enough ONLY IF YOU ARE USING WIRED KEYBOARD AND MOUSE. I found out using wired mouse pretty much draws just enough power where the note 3 will go crazy. I connected the dock to a slightly higher usb power supply (2.1 and 2.4 amps) and it works fine. Video is now stable.
To stay with the OEM usb power supply for your samsung dock, go with a wireless keyboard/mouse. I connected the wireless usb transceiver to the dock to talk to my keyboard and mouse and all is well. No more issues with the note 3 and also the note 4 when connected to the dock.
The video display on my note 3 will automatically switch to horizontal view when it detects a keyboard. Detecting mouse will not automatically rotate the external screen to horizontal view. Haven't tested this on the note4 to see if the note4 exhibits the same behavior.

Hello all. I just got one of these because I read that It worked fine for the note 4. Only thing I read that didnt work was the audio out.
I guess I read the wrong stuff.
When I plug my dock into the included charger, then put my note 4 in it, NOTHING at all happens. I have never used a dock before, so I dont know exactally what to expect. I thought that the phone would at least start to charge, but nope.
I tried a USB flash drive, but when I plug that in, nothing happens on the phones screen and no audio prompts. I dont know exactally how to see the flash drive.
Also, I dont have access to my big tv with the HDMI to test that out, kids on xbox, but as soon as I do, I will post back here to let you know if that works.
Does the cord matter? The small white cord that came with it developed a short in no time. I wasnt rough on it at all.. Oh well.
Any input is greatly appreciated as I already submitted a return ticket. If this thing works but only without charging, I think I can live with that. Kinda sucks though.
Thanks all.