[Q] USB peripherals - Fire TV Q&A, Help & Troubleshooting

There doesn't seem to be much documentation on the USB port on the Fire TV, and I have a couple of questions regarding it.
1. The port seems to be powered, as I have seen people talk about stand alone drives. Is there anywhere that documents the actual power output in amps and volts? Is it the same as a standard USB port on a computer? I'd like to connect a splitter with a 1TB WD drive and a wireless mouse/keyboard combination, but I don't really want to buy a powered hub.
2. Is there a proper shutdown procedure for the USB port so as not to fry it? I had a motherboard go bad on a computer many years ago because I would remove a wireless mouse without properly disconnecting it. I would hate to do that to the only port on this piece of equipment.
Thanks

Related

[Q] Micro USB to USB Converter, mouse and keyboard simultaneously

Is it possible using this kind of converter to connect simultaneously a mouse and a keyboard together to the phone ? (for example using a wireless set mouse/keyboard or a usb splitter).
Can the phone provide the power to work on both devices ?
Maybe if it was possible to charge the phone somehow using the same cable ?
http://forum.xda-developers.com/showthread.php?t=1098778
I want to connect the phone to a tv using hdmi cable (adaptor) and control the phone from distance using a wireless keyboard/mouse.
thanks
I would be interested in this too. I saw EVO 4G used as a desktop computer - http://forum.xda-developers.com/showthread.php?t=1038840 but he used bluetooth mouse and keyboard and the only thing connected to its micro usb port was hdmi cable. I would rather use some kind of usb hub in order to connect these 3 devices to the micro usb port in the phone and even charge it all at once. If anyone knows if it is possible please share your knowledge
BT
Yes, you are right about Bluetooth. I believe it's the best solution (but more expensive) because when connecting the hdmi adaptor no other ports remain for other usb devices. Also hmdi adaptor charges the phone (for example BizLink MHL to HDMI TV-Out Adapter)
thanks
You might be able to run both USB mouse & keyboard; try using a keyboard that has a USB port or two on it, then plug the mouse into the keyboard's USB. Power may be a problem; the SGS2's USB connector isn't going to provide anywhere near the 500 mA in the USB 2.0 spec.
Of course, if you're using the USB, you can't use the MHL/HDMI, and vice versa -- the connector modes are mutually exclusive. If you have to have HDMI output, you should be able to use a BT keyboard and/or mouse.

Micro Usb To Mini USb to Normal USB

I've already ordered the Mine Keyboard and the Adapter to later know that atrix uses a micro USB...
this is the adapter:
http://produto.mercadolivre.com.br/...-conversor-usb-a-fmea-para-mini-usb-macho-_JM
Sure it doesnt fit in atrix. but.. if i buy this?
http://produto.mercadolivre.com.br/...-para-micro-usb-motorola-moto-q11-cpmt018-_JM
and then convert micro to mini then mini to usb normal? would i be able to plug a keyboard? Thanks
or even buy this new one?
http://produto.mercadolivre.com.br/MLB-195555339-conversor-usb-femea-para-micro-usb-_JM
Lordareon said:
I've already ordered the Mine Keyboard and the Adapter to later know that atrix uses a micro USB...
this is the adapter:
http://produto.mercadolivre.com.br/...-conversor-usb-a-fmea-para-mini-usb-macho-_JM
Sure it doesnt fit in atrix. but.. if i buy this?
http://produto.mercadolivre.com.br/...-para-micro-usb-motorola-moto-q11-cpmt018-_JM
and then convert micro to mini then mini to usb normal? would i be able to plug a keyboard? Thanks
or even buy this new one?
http://produto.mercadolivre.com.br/MLB-195555339-conversor-usb-femea-para-micro-usb-_JM
Click to expand...
Click to collapse
you will not be able to plug in a USB peripheral (mouse, keyboard) directly into the phone. it will not work.
you can, however, purchase a +5V powered USB hub (that plugs into the wall), and use that to plug into the phone and plug your KB/mouse into the hub, and it should work. you can find such hubs at www.dealextreme.com
to further answer your question, USB-___USB converters will work as long as the converters have all four lines hooked up. many converters are 'power-only' where only the power/ground lines are connected and the other two lines (data) are not.
So if i buy an ordinary pc hub that connects to power and the plug usb-to-microusb, it will work?
Well let it alone, ill buy a Bluetooth keyboard, will spare time and cables and converters ahahha
The Micro USB plug must be OTG (USB ON THE GO) or your phone won't recognize the peripheral. Also the advice given was correct, the phone USB port can't provide power to a peripheral device and so you must use a powered hub in between the phone and the peripheral device.
A USB OTG has pin 5 and pin 4 tied together in the Micro USB connector end to tell the phone to invoke OTG mode.
Lordareon: yea... if you'd go the wired route, you'd need a powered USB hub, since the Atrix's micro-USB port doesn't work as a host port. It doesn't provide power to external devices.
elementaldragon said:
Lordareon: yea... if you'd go the wired route, you'd need a powered USB hub, since the Atrix's micro-USB port doesn't work as a host port. It doesn't provide power to external devices.
Click to expand...
Click to collapse
already been stated twice.

Micro usb splitter?

Hi i wonder where i can buy a microusb splitter for my phone so that i can use, both usb keyboard and hdmi cable together. I just tried keyboard+mouse using a usb hub, and it worked fine...
does it even exist?
Sorry, but this can't work. When the phone is putting out HDMI, the USB can't be used as it takes the same connector pins. You can do what you want with a bluetooth keyboard and mouse, but sorry, not with wired.
try to find the smallest hub there is, that's the closest you will get to a usb splitter that works. Just splitting will never work, the signals have to be divided with some intelligence.
/edit... never mind didn't read the MHL/HDMI part... don't think that will work
I am also intrested in this topic. I want to plug in the HDMI cable and s remote controler. I want to use my phone as a media center.
tomig64 said:
I am also intrested in this topic. I want to plug in the HDMI cable and s remote controler. I want to use my phone as a media center.
Click to expand...
Click to collapse
You flat out can't; it is a limitation of the more common MHL implementation, and the Galaxy Nexus uses this MHL implementation.
Samsung had to use a new kind of MHL connection for the Galaxy S 3 to make this exact scenario possible.
*edit* You can plug in an HDMI cable and use a bluetooth remote, though, if that might work for your needs.

MHL with USB OTG?

Has anyone found a MHL cable that also includes a USB OTG port? Samsung reportedly changed from a 5-pin configuration to an 11-pin configuration to allow MHL with USB Host mode simultaneously. Perhaps for a future Desktop Mode?
Has anyone been able to find one of these cables?
Just wanted to update, I believe I found the type of connector that I was looking for, but it is missing HDMI and it is sold out. This essentially could give you PC type connectivity on the S3.
http://www.mobilefun.com/35462-mobile-fun-connection-kit-for-samsung-galaxy-s3.htm
I think we still have a bit of a wait. What you found is essentially a USB OTG hub with some card readers built in. I seriously doubt this will pass through the pins for HDMI to work out of the usb port. We'll see something when this phone finally launches everywhere. It's not even out in the US officially yet
EDIT: Sorry, didn't see the article in the link in the OP. Man.. I might have to get me a GS3 now. I'm quite satisfied with the reasoning for a pin change. =)
Samsung sells 11 pin MHL adapters and USB female to Micro USB male adapters on their accessories page, but I'm not sure if you could piggy back the USB input into the charging port of the MHL cable. I don't see any all in one cables on their site, and the desktop dock is just micro usb/audio. I tried.. =(
Here's what I was looking at.
Old and mostly unrelated. See edit.
I happened to buy what looks exactly like that adapter today earlier at Micro Center. Now, I do have a Galaxy Nexus, but the USB OTG works great with keyboards/usb/mice/hubs; however, I cannot get it to simultaneously work with my MHL adapter. I understand the GS3 has a different pin layout though for MHL - my phone works with my MHL adapter correctly, but I didn't think it would have any change on the USB OTG. I'll most likely be breaking these apart and start tinkering. My goal is to show people how much of a full desktop-like experience I can provide from my phone, since so many people somehow think a GNex or GS3 are inferior to tablets, just because they're smaller... lol
Good luck finding information out on some kind of MHL/USB OTG setup. I'm just trying to provide any information I can from how my situation works with MHL/OTG, since I'm currently on the quest to achieve this myself.
kynolin said:
EDIT: Sorry, didn't see the article in the link in the OP. Man.. I might have to get me a GS3 now. I'm quite satisfied with the reasoning for a pin change. =)
Samsung sells 11 pin MHL adapters and USB female to Micro USB male adapters on their accessories page, but I'm not sure if you could piggy back the USB input into the charging port of the MHL cable. I don't see any all in one cables on their site, and the desktop dock is just micro usb/audio. I tried.. =(
Here's what I was looking at.
Old and mostly unrelated. See edit.
I happened to buy what looks exactly like that adapter today earlier at Micro Center. Now, I do have a Galaxy Nexus, but the USB OTG works great with keyboards/usb/mice/hubs; however, I cannot get it to simultaneously work with my MHL adapter. I understand the GS3 has a different pin layout though for MHL - my phone works with my MHL adapter correctly, but I didn't think it would have any change on the USB OTG. I'll most likely be breaking these apart and start tinkering. My goal is to show people how much of a full desktop-like experience I can provide from my phone, since so many people somehow think a GNex or GS3 are inferior to tablets, just because they're smaller... lol
Good luck finding information out on some kind of MHL/USB OTG setup. I'm just trying to provide any information I can from how my situation works with MHL/OTG, since I'm currently on the quest to achieve this myself.
Click to expand...
Click to collapse
I'm not really sure why people think they NEED MHL and USB OTG simultaneously to get a "desktop-like experience". You can already accomplish this with just a plain MHL cable and a bluetooth keyboard and mouse as was demonstrated in the Connectivity Demo video on youtube.
Edit: Actually I just remembered about portable hard drives. If you want to hook up a mouse, keyboard AND hard drive I wonder if you can plug all three into a powered USB hub connected to a bluetooth dongle. Hmm...
I'm looking for a dock with USB OTG, charging and MHL. Maybe some day.
I believe this is already capable. Everything I say here is purely speculative, but what I see is that Samsung moved to a 11-pin connector for MHL and the standard 5-pin is no longer functioning. To call it MHL, they probably have to use the same standards for data encoding... but they simply "moved" the pins.
I put "moved" in quotes because of the way in which a standard 4 pin USB cable works (or 5 pin for our case)... you have a +5V, Ground, Data + and Data - (one data to phone, one data from phone, carrying ALL data). Since our phones still sync via 5-pin cables, this means the 5 pins are still "hot" for data like all other phones. I am presuming, that for the 11-pin connector, Samsung simply added a few more data+ and data- connectors (much like having two or three USB ports on a normal computer) but consolidated the ground/5V reference. I could be wrong, but it would make sense.
Lets call the stock 5 pin data connectors (2 wires) USB1. This is where MHL is conventionally sent through and all sycing can be completed through, 5 pin cable or 11 pin cable. If samsung added two additional USB ports to the single connector, lets say MHL is now over USB2 (wires inaccessible to 5 pin connectors). This frees up bandwidth and COM ports on USB1 and USB3 to use for accessories like a USB hard drive and keyboard/mouse. On a 5 pin connector, however, only USB1 is accessible. The Samsung 11pin to 5pin MHL adapter simply moves the data+/- from USB2 to USB1 (standard 5 pin location), so with the adapter you are syncing/exporting video over USB2 on the phone with a standard 5pin cable.
My thinking is such: If you plug in the OEM 11pin MHL adapter, it will also have access to the standard 5pin USB1 connection. Since USB2 is used for MHL, you can then plug any OTG device into the micro USB connector on the MHL adapter to make use of it. The only problem here is power (or lack thereof). By plugging in a USB hub with a discrete power source, plugging this into the MHL adapter, and plugging in the USB device of choice into the HUB, you *SHOULD* be able to get simultaneous data and HDMI. This assumes they put the standard 5 pins to the connector on the side of the MHL adapter and only wired the HDMI to the USB2 area.
Alternatively, you *SHOULD* be able to plug the micro USB cable from the MHL adapter into a computer, and simultaneously be able to sync files while outputting HDMI video. It sort of just comes down to being able to provide power to the MHL adapter on the +5V pin while using the data pins to access the phone. As soon as I have my MHL I'll figure it out, but that could be a bit. If anybody has access to a pinout from a Samsung 11 pin micro USB that would be helpful too.
Again, just dreaming here. I don't know anything about this, but if I was the engineer at Samsung I would choose this over analog outputs like Apple used for their giant connector.
kthung said:
I'm not really sure why people think they NEED MHL and USB OTG simultaneously to get a "desktop-like experience". You can already accomplish this with just a plain MHL cable and a bluetooth keyboard and mouse as was demonstrated in the Connectivity Demo video on youtube.
Edit: Actually I just remembered about portable hard drives. If you want to hook up a mouse, keyboard AND hard drive I wonder if you can plug all three into a powered USB hub connected to a bluetooth dongle. Hmm...
Click to expand...
Click to collapse
for me at least i already have several keyboards and mice ... none are bluetooth.
I'm looking for the cheapest option available.
I'm just hoping someone releases a cable with 4 plugs:
Male MHL - To Phone Obviously
Female MicroUSB: To plug in charger
Female HDMI - To Display
Female USB - To USB Device
That's all I want... should cost less than $2 to make, just sell it for $20 and I'd be happy.
v8bait said:
I believe this is already capable. Everything I say here is purely speculative, but what I see is that Samsung moved to a 11-pin connector for MHL and the standard 5-pin is no longer functioning. To call it MHL, they probably have to use the same standards for data encoding... but they simply "moved" the pins.
I put "moved" in quotes because of the way in which a standard 4 pin USB cable works (or 5 pin for our case)... you have a +5V, Ground, Data + and Data - (one data to phone, one data from phone, carrying ALL data). Since our phones still sync via 5-pin cables, this means the 5 pins are still "hot" for data like all other phones. I am presuming, that for the 11-pin connector, Samsung simply added a few more data+ and data- connectors (much like having two or three USB ports on a normal computer) but consolidated the ground/5V reference. I could be wrong, but it would make sense.
Lets call the stock 5 pin data connectors (2 wires) USB1. This is where MHL is conventionally sent through and all sycing can be completed through, 5 pin cable or 11 pin cable. If samsung added two additional USB ports to the single connector, lets say MHL is now over USB2 (wires inaccessible to 5 pin connectors). This frees up bandwidth and COM ports on USB1 and USB3 to use for accessories like a USB hard drive and keyboard/mouse. On a 5 pin connector, however, only USB1 is accessible. The Samsung 11pin to 5pin MHL adapter simply moves the data+/- from USB2 to USB1 (standard 5 pin location), so with the adapter you are syncing/exporting video over USB2 on the phone with a standard 5pin cable.
My thinking is such: If you plug in the OEM 11pin MHL adapter, it will also have access to the standard 5pin USB1 connection. Since USB2 is used for MHL, you can then plug any OTG device into the micro USB connector on the MHL adapter to make use of it. The only problem here is power (or lack thereof). By plugging in a USB hub with a discrete power source, plugging this into the MHL adapter, and plugging in the USB device of choice into the HUB, you *SHOULD* be able to get simultaneous data and HDMI. This assumes they put the standard 5 pins to the connector on the side of the MHL adapter and only wired the HDMI to the USB2 area.
Alternatively, you *SHOULD* be able to plug the micro USB cable from the MHL adapter into a computer, and simultaneously be able to sync files while outputting HDMI video. It sort of just comes down to being able to provide power to the MHL adapter on the +5V pin while using the data pins to access the phone. As soon as I have my MHL I'll figure it out, but that could be a bit. If anybody has access to a pinout from a Samsung 11 pin micro USB that would be helpful too.
Again, just dreaming here. I don't know anything about this, but if I was the engineer at Samsung I would choose this over analog outputs like Apple used for their giant connector.
Click to expand...
Click to collapse
hi v8bait, are you able to get data thru the micro usb port at the side of the 11-pin mhl adapter? i was thinking of using the motorola lapdock with my s3 thru the mhl adaptor (other then a micro hdmi male connector, the lapdock also has a micro usb male connector that apparently send out power as well as push keyboard/trackpad data upstream) - if it works, we can have an inexpensive "clambook"
Just to recap,
Will this we possible:
Official MHL adapter -> hdmi to monitor.
|
>OTG cable> Powered USB hub> USB keyboard & mouse.
In other words, the PC Experience with a keyboard and mouse.
Dont really want to spend the money to buy a Bluetooth keyboard and mouse when the USB ones can work just fine (theoretically).
romulusram said:
Just to recap,
Will this we possible:
Official MHL adapter -> hdmi to monitor.
|
>OTG cable> Powered USB hub> USB keyboard & mouse.
In other words, the PC Experience with a keyboard and mouse.
Dont really want to spend the money to buy a Bluetooth keyboard and mouse when the USB ones can work just fine (theoretically).
Click to expand...
Click to collapse
I am also very interested in this exact thing. Using USB devices (multiple ones, e.g. plugging a powered USB hub into S III and then plugging them in) but also putting out S III video to HDMI.
However the other workaround is using AllShare Cast. In fact that is the route I'll likely go, because of the other unique advantages of AllShare Cast (i.e. using it for presentations to screens, etc.)
So: has anyone plugged a powered USB hub into S III and used multiple devices? Such as a keyboard and mouse?
I also want to use this S III more as a computer. the other perfect thing I wish I could buy would be a keyboard case, like the one available for iphone, so I can prop the S III up on a kickstand and use a real mini-QWERTY physical keyboard.
macdroid01 said:
I am also very interested in this exact thing. Using USB devices (multiple ones, e.g. plugging a powered USB hub into S III and then plugging them in) but also putting out S III video to HDMI.
However the other workaround is using AllShare Cast. In fact that is the route I'll likely go, because of the other unique advantages of AllShare Cast (i.e. using it for presentations to screens, etc.)
So: has anyone plugged a powered USB hub into S III and used multiple devices? Such as a keyboard and mouse?
I also want to use this S III more as a computer. the other perfect thing I wish I could buy would be a keyboard case, like the one available for iphone, so I can prop the S III up on a kickstand and use a real mini-QWERTY physical keyboard.
Click to expand...
Click to collapse
We're in the same boat; i want to use the s3 like a mini computer too. I think it'd be great for business travel, when i dont really need a laptop during the day but want something when i'm back in hotel room. I'd much rather use hotel TV instead of a laptop because that's what i am used to at home... pc hooked to TV.
I've been planning to use the allshare cast dongle too, but they dont seem to be available yet. I was thinking HDMI out with the allshare.. charging with the wireless charging kit and then keyboard and mouse with USB OTG. My logitech unifying receiver for keyboard/mouse works perfectly i just need the wireless charging and allshare dongle to be released.
For what it's worth I tried a powered USB hub and could not get it to work with the s3.
faulkton said:
For what it's worth I tried a powered USB hub and could not get it to work with the s3.
Click to expand...
Click to collapse
Wait so your saying you tried a (a) powered USB hub with a OTG cable connected to the phone or you tried a (b) powered USB hub connected with a OTG cable to the MHL adapter and then to the phone?
If it was (a) then there are some vids out there of ppl using powered USB hubs.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2
So has anyone received their Official MHL adapater and tried USB OTG?
Very interested in this.,,
I'm puzzled that there aren't any more postings about this kind of stuff. I was expecting the GS3 to be easy to use as a "PC" replacement but it seems no one besides us few wanted to do that ? A simple cable should have done it but I'd even be willing to shell out 40-50$ for a decent dock that would do just that
romulusram said:
So has anyone received their Official MHL adapater and tried USB OTG?
Very interested in this.,,
Click to expand...
Click to collapse
Me too.
But it is possible to get that this way working:
Code:
S3 -> Mobile Fun Connection Kit -> microusb -> HDTV Adapter TIP (5 to 11 Pin Converter) -> MHL HDMI adapter
|
-> USB -> keyboard etc.
Links
http://www.mobilefun.com/35462-mobile-fun-connection-kit-for-samsung-galaxy-s3.htm
http://www.samsung.com/us/mobile/cell-phones-accessories/EPL-FU10BEGSTA
Maybe I'm not reading these posts correctly but I am using an usb keyboard and a usb mouse on my S3 with no problems using these two accessories:
http://www.amazon.com/Belkin-USB-2-...e=UTF8&qid=1343845994&sr=8-1&keywords=usb+hub
http://www.amazon.com/Micro-USB-OTG...UTF8&qid=1343846045&sr=1-3&keywords=otg+cable
Have my keyboard and mouse plugged into the usb hub and then the usb hub into my usb OTG cable which of course plugs into the S3. Everything's working on my end.
romulusram said:
So has anyone received their Official MHL adapater and tried USB OTG?
Very interested in this.,,
Click to expand...
Click to collapse
I have the official MHL adapter and there is no female USB port on it for OTG
badbeat33 said:
Maybe I'm not reading these posts correctly but I am using an usb keyboard and a usb mouse on my S3 with no problems using these two accessories:
http://www.amazon.com/Belkin-USB-2-...e=UTF8&qid=1343845994&sr=8-1&keywords=usb+hub
http://www.amazon.com/Micro-USB-OTG...UTF8&qid=1343846045&sr=1-3&keywords=otg+cable
Have my keyboard and mouse plugged into the usb hub and then the usb hub into my usb OTG cable which of course plugs into the S3. Everything's working on my end.
Click to expand...
Click to collapse
You are not reading it right.
they want to use the MHL adapter, too.
As far as i can tell, the MHL adapter needs to be in the phone, not a hub. it is all dictated (the output being OTG, or MHL) by the impedance of what is plugged in. It is an either or situation.
Perhaps with a firmware update they MIGHT be able to run both signals and split it.. but i doubt it.

Battery Powered USB Hub

The usb OTG allows to connect devices to the Note 10.1 but some devices require higher power, that looks like they work if connected to a powered usb hub!
Does anyone know os any battery powered usb hub so it is possible to connect to high power devices without a wall plug nearby!
The only one I could find was:
tekkeon mp1800
Another one discontinued:
CyberPower Mobile Battery Powered 4-Port USB Hub (CP-H420MP)
But it's been discontinued everywhere.
I've ordered the RAVPOWER WIFI battery powered hub. I hope to have it by Monday and will review it once I have had a chance to use it. Its battery is supposed to be able to recharge a phone, but I wouldn't try to power a hard drive with it (you're supposed to be able to connect a 2T hard drive to its USB port). If you want battery power for a hard drive, I'd recommend a separate high-powered battery. Here's a link to the RAVEPOWER unit, which is half-price right now at Amazon. http://www.amazon.com/RAVPower%C2%AE-RP-WD01-Wireless-WiFi-Disk-Li-Polymer/dp/B00AQUMZRA/ref=sr_1_fkmr0_1?ie=UTF8&qid=1361466247&sr=8-1-fkmr0&keywords=RAVPower%C2%AE+Wireless+WiFi+Disk+Built-in+3000+mAh++External+Battery+Pack+Charger+RP-WD01.+Read
---------- Post added at 10:11 AM ---------- Previous post was at 10:01 AM ----------
I see there's a review in the general accessories forum. I'll stll do a review; I plan to hook a 2T hard drive to the USB port to see how well it works. Here's the review. http://forum.xda-developers.com/showthread.php?t=2150164
Can the USB port act as a Pass - Thru (when directly connected to the tablet, obviously) for High powered devices such as USB Ethernet Adapter
ie:
USB Ethernet --> RAVPOWER --> USB Cable --> Tablet
klau1 said:
Can the USB port act as a Pass - Thru (when directly connected to the tablet, obviously) for High powered devices such as USB Ethernet Adapter
ie:
USB Ethernet --> RAVPOWER --> USB Cable --> Tablet
Click to expand...
Click to collapse
I dont believe so, but I don't have my unit yet. This serves as a WIFI hub with an SD card reader an a USB port that can accomodate flash drives and hard drives upto 2T. You can share access with others and if you read the link to the review I posted you'll see that the reviewer set his up to share access with several friends in a 3-car caravan during a road trip and that they could get a signal and share files while moving down the road (clearly, we hope it was only the passengers testing it out). I'll confirm that it supports 2T hard drives once I get my unit.
klau1 said:
The usb OTG allows to connect devices to the Note 10.1 but some devices require higher power, that looks like they work if connected to a powered usb hub!
Does anyone know os any battery powered usb hub so it is possible to connect to high power devices without a wall plug nearby!
The only one I could find was:
tekkeon mp1800
Another one discontinued:
CyberPower Mobile Battery Powered 4-Port USB Hub (CP-H420MP)
But it's been discontinued everywhere.
Click to expand...
Click to collapse
I have this: CyberPower Mobile Battery Powered 4-Port USB Hub (CP-H420MP), but I am afraid it is not working with the tablet. Or maybe I am doing something wrong. Either way I have put it up on Craigslist for sale as I can't manage to make it work, bought it about a year ago for the HP TouchPad and never used it

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