Database Users

[ULTIMATE SOLUTION]to 'unknown' USB device error

Yupp...
Picked up this from a cheapy universal USB set from Walmart
for 15.00$ after spending 3hrs trying to get my buddies Epic flashed.
Hooking the phone directly to the micro end, and the standard USB to
the front port of my desktop, I have successfully had the drivers automatically install, and flashed all in the first try.
This method is the most amount of current, least amount resistance from computer
to the device.
Also USB mounting works again, since it stopped this function with the dreaded
'unknown' device error <-now defeated =]

Dude, are you using the stock cable? It's probably just that cable...you could have purchased another MicroUSB cable for much less than $15 and accomplished the same thing...while having extra cables handy.
http://www.amazon.com/gp/product/B002YGRAS8/ref=oss_product
http://www.amazon.com/gp/product/B001UC9NOQ/ref=oss_product
I have those and they both work great with my Epic.

Generally the reason why this issue comes up from my experience is because of the ****ty cables that people (including me at one point) use.

You'd think that the stock cable included would be one of decent quality.

sauron0101 said:
You'd think that the stock cable included would be one of decent quality.
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And you think they'd release the phone with the current version of Android. Oh well =P

Miro USB Car Charger?

Saw this bundle on Amazon http://www.amazon.ca/Skque-Premium-Protector-Earphone-Charger/dp/B006OIQC04/ref=sr_1_15?ie=UTF8&m=A3VAVEQC03JY97&s=generic&qid=1325865654&sr=1-15 and noticed that it included a micro usb car charger. Would this work with our tablets?

??? The manufacture says it will.

The a500 doesn't support usb charging, supposedly there will be an update to allow it.
~Sent from my Droid SuperCharge~

>DARKMAN< said:
The a500 doesn't support usb charging, supposedly there will be an update to allow it.
~Sent from my Droid SuperCharge~
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Do you have a link to a source stating that there will be an update to allow it?
It doesn't make sense to me, because the hardware physically can't support it (USB can only deliver 5V, whereas the A500 wants 12V IIRC)

It won't work like stated before a micro usb charger won't have the juice to do it. When you plug in the micro usb the charge light does not come on. Not supported and I don't know of any update that will change that.
Update: I just actually clicked on your link and the whole bundle is suspect. The wall charger is even a micro usb. Won't work, perfect example of a company throwing together a cheap bundle to entice the consumer that he is getting a great deal. I bet the chargers aren't even 1000ma which would be the minimum need to charge our tablet if it supported it.

charging and running a 12v device thru a 5 v port.. IF acer figures this out or any other company as in the one the OP is posting..
This company will RULE THE WORLD. BY SOLVING THE ENERGY demand crises in the world... Getting a bit over double energy as you put into something...
Sheesh even a Lame Blonde chic figured this out the day I BOUGHT MY iconia. it Says 12V 1.5 a on my charger... First thing i looked at so i could set my CAR INVERTER . for my tablet.. But with the battery life of the iconia I nearly never need it.. I can howerver charge my cell phone from the usb port in my tablet..
OP no offence but some companies will use popular device names just to trigger sales Read fine print and there exact specs. on any such device..
---------- Post added at 12:07 PM ---------- Previous post was at 11:57 AM ----------
Ok ..
Something just came to my mind.. .
I have a new notebook. that has a usb/sata port.. Now i know it required a special cable that is designed for a usb to sata hard drive to use it with a sata hard drive without a enclusure and it runs at the speed of a internal sata port.. when you connect a hard drive to this port . it shows up as a sata drive not a usb drive..
the drive i use is a 3.5 inch 2 tb hard disk that is 12v-5v..
so with this said. its actually pliable that this could work.. But im thinking our iconia does not have this type of usb port.. I will add the 12v usb /sata cable and hard drive will only work on that one usb port on my notebook. the others will not even register it.. If this is a device used in a usb/sata then connected to the Power port of the iconia.. there is a chance such a device COULD be created...
ok im rambling.. Because i DO NOT THINK THIS IS EVEN THOUGHT ABOUT.. most people do not even know this usb/sata shared technology exist....
LAME ERICA AGAIN.. sorry for stealing your thread op.. was just THOUGHTS

erica_renee said:
charging and running a 12v device thru a 5 v port.. IF acer figures this out or any other company as in the one the OP is posting..
This company will RULE THE WORLD. BY SOLVING THE ENERGY demand crises in the world... Getting a bit over double energy as you put into something...
Sheesh even a Lame Blonde chic figured this out the day I BOUGHT MY iconia. it Says 12V 1.5 a on my charger... First thing i looked at so i could set my CAR INVERTER . for my tablet.. But with the battery life of the iconia I nearly never need it.. I can howerver charge my cell phone from the usb port in my tablet..
OP no offence but some companies will use popular device names just to trigger sales Read fine print and there exact specs. on any such device..
---------- Post added at 12:07 PM ---------- Previous post was at 11:57 AM ----------
Ok ..
Something just came to my mind.. .
I have a new notebook. that has a usb/sata port.. Now i know it required a special cable that is designed for a usb to sata hard drive to use it with a sata hard drive without a enclusure and it runs at the speed of a internal sata port.. when you connect a hard drive to this port . it shows up as a sata drive not a usb drive..
the drive i use is a 3.5 inch 2 tb hard disk that is 12v-5v..
so with this said. its actually pliable that this could work.. But im thinking our iconia does not have this type of usb port.. I will add the 12v usb /sata cable and hard drive will only work on that one usb port on my notebook. the others will not even register it.. If this is a device used in a usb/sata then connected to the Power port of the iconia.. there is a chance such a device COULD be created...
ok im rambling.. Because i DO NOT THINK THIS IS EVEN THOUGHT ABOUT.. most people do not even know this usb/sata shared technology exist....
LAME ERICA AGAIN.. sorry for stealing your thread op.. was just THOUGHTS
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Dont be sorry, it is very interesting input. I am quite annoyed though because I was actually pretty stoked about having a USB charger. I agree the battery life is pretty good on the Iconia but there are always those days where you forget to charge the thing before going to work. (Thats what got me looking on Amazon in the first place)
I am doubly annoyed that someone might actually buy this and get a big disappointment when the product actually arrives.
Very curious about this SATA / USB port though. Time for some google fu!

i read the manual from HP with not much said in there other then its called a. USB/e-sata port.
I do also know its usb 3.0 standard this notebook is the HP dm1-us3020 model.I think the z version of this notebook does not have this port.the notebook is based on the and Fusion CPU.and gets 7 plus hours batterylife with moderate use.
Charging it is another story.its I think 9 cell li 19.7 v charging brick spent 125.00 for car inverter for this thing grrrrrrrr.
OK im at hair salon and its my turn.
wish me luck.

i believe what you're talking about is an eSATAp port. My (Toshiba) Satilite has one, I just use it as an extra USB port.
*Googles*
http://en.wikipedia.org/wiki/ESATAp
Some good stuff in there.

mtmerrick said:
i believe what you're talking about is an eSATAp port. My (Toshiba) Satilite has one, I just use it as an extra USB port.
*Googles*
http://en.wikipedia.org/wiki/ESATAp
Some good stuff in there.
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here is tthe cable I use .not sure if its the same brand
http://www.amazon.com/eSATA-Combo-P...LHVI/ref=sr_1_1?ie=UTF8&qid=1325966252&sr=8-1
Yes that is the port.as I said above it will run a 3.5 hard drive connected with nothing more then a cheap USB to e-sata unmanaged.(no chips or resistores in cable) type of cable.for all I know all newer notebooks might have one.
I was just making a point that you could in theory charge your Iconia from this port to the Iconia power port.
As the hard drive requires12 vfrom my knowledge.but im not cutting my cable to try it.Don't ask Giggles.

erica_renee said:
here is tthe cable I use .not sure if its the same brand
http://www.amazon.com/eSATA-Combo-P...LHVI/ref=sr_1_1?ie=UTF8&qid=1325966252&sr=8-1
Yes that is the port.as I said above it will run a 3.5 hard drive connected with nothing more then a cheap USB to e-sata unmanaged.(no chips or resistores in cable) type of cable.for all I know all newer notebooks might have one.
I was just making a point that you could in theory charge your Iconia from this port to the Iconia power port.
As the hard drive requires12 vfrom my knowledge.but im not cutting my cable to try it.Don't ask Giggles.
Click to expand...
Click to collapse
Very interesting. According to wiki, laptop eSATAp ports deliver 5v and desktop eSATAp ports deliver 12v. Not sure where in the computer the extra v come from.
I don't have the charger with me so I don't know the specs but I'm wondering if a USB 3.0 to iconia power plug cable would hypothetically work?

Amazon item from op
I got very frustrated after looking around on amazon today for something diffrent.. Frustrated seeing this add for the product you talk about all over the iconia a500 searches on amazon.. So i emailed them about this product . giving them the specs of the a 500 along with a link to the required charger. I also did a review of the product warning anyone from buying this...
I suggest others do the same ITS JUST OUTRIGHT FRAUD...... the seller sent me a response stating the device will do what it says. well not for my iconia it will not..

Putting usb hub inside the TF

If you've ever opened up the TF, you'd very quickly realized that there's a lot of unused room in there. I found a 64gb flash drive from walmart for about $60 a piece. Got 3 of these. That gives me almost 200 GB.
I've been doodling with the idea of putting a usb hub inside the TF and then solder these flash drives onto it. Making room for the whole setup is no problem. Like I said, there's a lot of unused space in there. The problem is I don't know how to connect a usb hub inside there for the tablet to recognize it. Any idea guys?

goodintentions said:
If you've ever opened up the TF, you'd very quickly realized that there's a lot of unused room in there. I found a 64gb flash drive from walmart for about $60 a piece. Got 3 of these. That gives me almost 200 GB.
I've been dooling with the idea of putting a usb hub inside the TF and then solder these flash drives onto it. Making room for the whole setup is no problem. Like I said, there's a lot of unused space in there. The problem is I don't know how to connect a usb hub inside there for the tablet to recognize it. Any idea guys?
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Click to collapse
i have a similar project in the works. i just wonder if we have a limit as to what size (storage) usb drive we use i want to try a usb powered 1tb hard drive...the possibilities would be endless.
one other idea i have no clue of how and if possible. but you know the EXT.(as internal) SD mod, what if we could find a way to do that with the usb storage.think of 1tb of storage("internally")!!!!!!

kevhuff said:
i have a similar project in the works. i just wonder if we have a limit as to what size (storage) usb drive we use i want to try a usb powered 1tb hard drive...the possibilities would be endless.
one other idea i have no clue of how and if possible. but you know the EXT.(as internal) SD mod, what if we could find a way to do that with the usb storage.think of 1tb of storage("internally")!!!!!!
Click to expand...
Click to collapse
I've already done what you're talking about. I've already put 500gb, 750gb, and 1T HDD into the docking station while keeping the batteries.
What I'm talking about is putting flash drives inside the TF itself, not the dock.

yeh but im taking the dock apart and putting it inside like you are saying inside the tab that would better i think you idea is better.
i think both in conjunction would be insane!

kevhuff said:
yeh but im taking the dock apart and putting it inside like you are saying inside the tab that would better i think you idea is better.
i think both in conjunction would be insane!
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Click to collapse
http://www.androidauthority.com/talented-modder-crams-500gb-hard-drive-into-asus-transformer-25981/

Love the dock mod but the images isnt working in the thread
But getting the TF to recognize the usb hub should be that complicated.
You'd probably need the usb host adapter (or make one yourself, if possible, idk).
Then it should just be a matter of soldering the adapter to the correct pins on the docking connector.
You might need a switch of some sort to tell the TF when to be host and when to be slave.
I dont own the usb host adapter myself yet, so Im not sure how the TF acts with the adapter connected.
Maybe its still possible to charge and sync even though the adapter is connected.

Goodintentions your the man you beat me to it ill post some pics when I get myne done

kevhuff said:
Goodintentions your the man you beat me to it ill post some pics when I get myne done
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OMG, you're going to be like apple aren't you? You're going to get a pattent for it and then you're going to sue me...

you couldnt pay me enough to be anything like Crapple not a fan of the mainstream overated Os's/products

kevhuff said:
you couldnt pay me enough to be anything like Crapple not a fan of the mainstream overated Os's/products
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Click to collapse
Haha, we'll see.
I've figured out a way to solder in a usb board and connect a hub to it to add those 128gb flash drives. After spending all night going through the plans, I'm abandoning the thought of putting it into the TF itself. I'll be putting those flash drives into the keyboard dock, though. Solid state drives are certainly much better than the spin discs. Let's see, 128gb x 4 = 512gb of flash drive space... won't suck up my battery much and aren't prone to damage due to movement like the HDD.
Stay tuned for the result!

goodintentions said:
Haha, we'll see.
I've figured out a way to solder in a usb board and connect a hub to it to add those 128gb flash drives. After spending all night going through the plans, I'm abandoning the thought of putting it into the TF itself. I'll be putting those flash drives into the keyboard dock, though. Solid state drives are certainly much better than the spin discs. Let's see, 128gb x 4 = 512gb of flash drive space... won't suck up my battery much and aren't prone to damage due to movement like the HDD.
Stay tuned for the result!
Click to expand...
Click to collapse
Man, you have balls modding out your dock like that I was impressed with your first dock mod of sticking that 500GB hard drive in it. Did you ever go back to that idea with doubling the battery life in the dock? I recall following that thread reading your updates and you got to a point where you said screw it.

traumbrecher said:
Man, you have balls modding out your dock like that I was impressed with your first dock mod of sticking that 500GB hard drive in it. Did you ever go back to that idea with doubling the battery life in the dock? I recall following that thread reading your updates and you got to a point where you said screw it.
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Without people like me who like to push things to their limits, we'd still be writing with hammer and chisel on stone.

There's 2 questions that come to mind.
1) Will any of the USB ports support a USB hub? I seem to remember there being some issues with this, but I honestly can't remember anymore...
2) Will you lose the use of 1 of the USB ports on the tablet?
I'm inclined to say that most likely 2 will happen, unless you're very VERY good at modifying the boards and don't mind cutting trace, possibly. If I knew I could afford another keyboard dock, I'd be doing this right now. Sadly, I can't. =/
EDIT:Well, in a quick check with my ****ty USB hub, it didn't like any of my USB sticks, then saw 1 of them but none of the files on it, then just kept showing that 1 stick no matter what I put in it. I'm rebooting, but I'm kinda thinking it doesn't like the USB hub I have, or doesnt' support them?
EDIT2: Seems that it only lets me see 1 USB drive at a time. No matter what I did (outside of using the port on the other side). I kinda think either my USB Hub isn't working well (works fine on my PC) with the TF, or it just doesn't support it for some reason. Or more to the point, it seems it only supports 1 USB disk drive per USB port on the dock. If I put 1 drive in each port I get USBdisk1 and USBdisk2. Perhaps it's an OS issue or a TF issue in some way as far as software? One would think you could get more than 1 USB disk on each port though.

..
goodintentions said:
Without people like me who like to push things to their limits, we'd still be writing with hammer and chisel on stone.
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So true. And without Android...we would probably be using a single core under 1Ghz. I still remember people saying "why do you need that much power?" Then..."who needs dual cores"...now..."quad core? Forget about it!" Hahahaha

darkhawkff said:
There's 2 questions that come to mind.
1) Will any of the USB ports support a USB hub? I seem to remember there being some issues with this, but I honestly can't remember anymore...
2) Will you lose the use of 1 of the USB ports on the tablet?
I'm inclined to say that most likely 2 will happen, unless you're very VERY good at modifying the boards and don't mind cutting trace, possibly. If I knew I could afford another keyboard dock, I'd be doing this right now. Sadly, I can't. =/
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Click to collapse
You really ought to read my hard mod thread. All of this has been discussed very thoroughly there. 2 Will happen. So what? There's 2 usb slots. Lose a usb slot to trade for 500gb storage space.
But that's why I put in a switch to turn on and off the hard drive. When the hard drive is off, the usb is usable.

goodintentions said:
You really ought to read my hard mod thread. All of this has been discussed very thoroughly there. 2 Will happen. So what? There's 2 usb slots. Lose a usb slot to trade for 500gb storage space.
But that's why I put in a switch to turn on and off the hard drive. When the hard drive is off, the usb is usable.
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I did read your thread...you probably don't remember me asking similar questions before
Honestly though, read the few edits I put above....I kinda think this won't work the way you want it to...seems to be some kind of strange software issue in regards to USBdisk's, for some reason.
EDIT:I guess it COULD work, if you could mount them somehow. I'm not sure how the addressing and such works, and honestly my linux knowledge isn't what it used to be. I guess what I'm saying is it could be done, I'm just not personally sure how in software. If you figure it out though, let me know. I'm sure I'd be interested.

Any chance you could reupload the images for your HDD mod?
Shame you abandoned the idea of putting the hub inside the TF, that wouldve been very interesting.

Cheap powered USB hub

Has anyone had luck with this one? I'm looking for one that is not too expensive.
http://www.amazon.com/gp/aw/d/B000Q8UAWY/ref=aw_cr_d_electronics
Sent from my Kindle Fire

That's not a "powered" hub. By most definitions, a powered hub would utilize a separate power source like an AC adapter, so the attached devices can draw power from it rather than the host device. Something like this perhaps...
http://www.amazon.com/dp/B000ERAOL4
I don't have any experience with either product... just wanted to point out the difference.

kinfauns said:
That's not a "powered" hub. By most definitions, a powered hub would utilize a separate power source like an AC adapter, so the attached devices can draw power from it rather than the host device. Something like this perhaps...
http://www.amazon.com/dp/B000ERAOL4
I don't have any experience with either product... just wanted to point out the difference.
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The Belkin looks like a good choice. There are cheaper products, but I suggest paying the extra bucks for something with a name brand and reputation.
I've had mixed results with cheaper powered hubs. Some worked fine, but none of them for long. My most common problem with cheap hubs is that the USB ports get loose and stop making good connections with your devices.
I've had another odd problem with one of the cheaper ones. The 5v input from the included transformer was not correctly isolated from the 5v of the USB port that heads to the PC. When my PC was shut down, other USB devices on my PC would try to power up through the tiny transformer, which eventually killed the transformer, and was also the most likely reason I had a set of USB ports fail on that machine.
Anyway, what I'm saying is that my recomendation is to buy from a company with a reputation to protect, it's worth the extra few bucks.

USB type c on Nexus 6P

Will it be USB 3.1 or like on One Plus Two?
What do you think?

I think that because Google is behind some of the tech choices (like all Nexus devices,) it will be USB 3.1. The Nexus devices have always been a way for Google to show what they think the next generation of Android phones should include.
USB C is a fantastic connector and is much better than the Micro B connector we have all gotten used to, but just switching the connector hopefully won't be good enough for Google. They'd be stupid not to take advantage of the newest USB standards and everything that comes with it.
So, my bet is on the 6P having USB 3.1.

i believe that the new nexus' will have the type c.. since marshmallow will support it .. and this is from google themselves

Nick0742 said:
I think that because Google is behind some of the tech choices (like all Nexus devices,) it will be USB 3.1. The Nexus devices have always been a way for Google to show what they think the next generation of Android phones should include.
USB C is a fantastic connector and is much better than the Micro B connector we have all gotten used to, but just switching the connector hopefully won't be good enough for Google. They'd be stupid not to take advantage of the newest USB standards and everything that comes with it.
So, my bet is on the 6P having USB 3.1.
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all of the leaks pretty much confirm USB C as a thing on the 6P and 5X. Im just hoping they are able to implement fast charging through them

In the leaked slides Google said it will have faster data transfer with USB Type-C so that implies its USB 3.1 but we will know for sure tomorrow

I'm about 99% sure it's just USB 2.0 Type C.
All of the accessory cables on google's store page are USB 2.0.
Sucks, but oh well I guess :/
Edit: AndroidPolice confirmed USB3 not USB2!!!
WOOHOO!!