Develop Bugs

USB Cardreader Hub

I just ran across this USB Card Reader/Hub for the Samsung Tab. The device has three USB ports and a card reader. It even has a plug for a 5V power supply.
http://www.ebay.com/itm/SAMSUNG-GAL...=Laptop_Adapters_Chargers&hash=item2316d2ac0e
Has anyone tried this thing? Does it perform as advertised? If it does, it may be the perfect accessory, especially when teamed with a power supply. On that subject, I wonder where one might find a compatible power supply that would provide the right amperage so it would work with the Tab.
Bob

^I would like to know also. If it works like it says, that would be the best thing ever!

I asked the company posting the device on eBay if they offered a power supply that would supply 2 amps. They said no.
Here is a question for some of the smart guys on this forum. Could the Tab be powered by a male to male USB cable plugged into the standard Samsung 110 V power plug and then in to the hub? The next question is if everything could be powered using a USB car adaptor that puts out 2 A.
Bob

Bump! Does anyone have experience with this device. If so, please post. Also, if anyone can answer the questions about the the power supply or USB charging from a car outlet, that information would be greatly appreciated.
Bob

I think you are misunderstanding the use of the power supply. I'm pretty sure the power supply doesn't charge the tab. It only powers the USB appliances (mainly for HDDs). An active USB-hub if you wish.
Regards
Achim

general1977 said:
I think you are misunderstanding the use of the power supply. I'm pretty sure the power supply doesn't charge the tab. It only powers the USB appliances (mainly for HDDs). An active USB-hub if you wish.
Regards
Achim
Click to expand...
Click to collapse
I am sure you are right. I wonder if the the Tab could be charged if a male to male USB cable was plugged into one of the USB ports and then to the stock Samsung plug?

I have that actually. I just have used it for an sd card though. Anyone want me to experiment something with it?

iknighty said:
I have that actually. I just have used it for an sd card though. Anyone want me to experiment something with it?
Click to expand...
Click to collapse
Great, you are just the guy I have been looking for. If you can come up with a male to male USB cable, plug one end into the device and the other into your Samsung charger puck. I am curious if the Tab will charge using this method.
Bob

dsafety said:
I am sure you are right. I wonder if the the Tab could be charged if a male to male USB cable was plugged into one of the USB ports and then to the stock Samsung plug?
Click to expand...
Click to collapse
Well, that depends on the hub. How it is designed. It may block current from flowing into the USB ports.
I have to check mine when I get home...
Mind you, USB current is limited to 0.5A and that isn't enough to charge the Tab and use it at the same time.
But, let me see if I understand what you're trying to do: Connect the 110V adapter to one of the USB ports. Power/charge the Tab through a second port.
As to your earlier question,about a vehicle equipped USB port... Same answer. It depends on how the hub is designed. Since I have Sync in my Ford I have a USB port and I can check that as well. I know the Tab works connected to it... just not a USB hub.

how's the test
so... any result from your test? can it charge the tab?

robobear said:
so... any result from your test? can it charge the tab?
Click to expand...
Click to collapse
I can't find my male/male USB cable. (I live in Alabama, and that sort of thing is against the law. )

micro female/male hdmi and usb for Lapdock

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

USB Cable Question

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

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

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

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

Awesome, thanks everyone.

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

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

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

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

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

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

"usb male" to micro usb female

Anyone know where I can to buy a "usb male" to micro usb female cable/ adaptor?
I have something I want to try, but I would need one of these if possible.
Any ideas?
Thanks!

firesoul453 said:
Anyone know where I can to buy a "usb male" to micro usb female cable/ adaptor?
I have something I want to try, but I would need one of these if possible.
Any ideas?
Thanks!
Click to expand...
Click to collapse
What would you want to try with that?
Are you referring to something like this:
ebay.com/itm/Hot-Mini-A-5P-5Pin-USB-Male-To-Micro-B-5P-5Pin-USB-Female-Extension-Data-Cable-/290699800110?pt=PDA_Accessories&hash=item43af0eee2e
only then with the full type-a plug on the male end?

I thing he means for Micro USB otg cable. You can get them for a dollar on Ebay.
Sent from my Galaxy Nexus using Tapatalk 2

No I mean a normal (not otg) that has a full sized usb male side to a micro usb female side.
Oh well I guess they don't exist.

you can always buy the two cables from a thrift store and then splice the cables yourself.

NewbCentral said:
you can always buy the two cables from a thrift store and then splice the cables yourself.
Click to expand...
Click to collapse
So are usb cables just connectors? Like can I just wire each pin to the exact opposite pin? Or is it more complex than than?

Which USB cable should I get?

Hi there,
So my original OnePlus data/charging cable is damaged and I have to put it in a certain position to get it to charge my phone. I had a spare but my friend has left it at his parents house and I don't think I'm going to get it back. I've been using the short charge cable that came with my OnePlus power bank to charge my phone.
I tried some old micro USB cables that I had lying around from older devices. They work for charging but they don't seem to let me connect my phone to my PC.
I also do not like the style of USB head that OnePlus put on their official cables, the plastic tab with the contact points does not sit firmly in the USB ports on my computer.
I want to get a couple of replacement USB cables for charging and data transfer but I don't know which cables would work with my OnePlus One. I would like to avoid an official OnePlus Micro USB cable as the USB connector is too loose.
Can anyone suggest a cable for me to get? I would like it to be able to charge at full speed and also work with USB file transfers and have a normal USB head on the cable so it sits firmly in the port.
I just don't want to order a wire and find out it doesn't work with the phone. I seem to remember my phone has always been picky with USB cables and I do have some driver issues that may be caused by the wire type.
Thanks,
donk165

donk165 said:
Hi there,
So my original OnePlus data/charging cable is damaged and I have to put it in a certain position to get it to charge my phone. I had a spare but my friend has left it at his parents house and I don't think I'm going to get it back. I've been using the short charge cable that came with my OnePlus power bank to charge my phone.
I tried some old micro USB cables that I had lying around from older devices. They work for charging but they don't seem to let me connect my phone to my PC.
I also do not like the style of USB head that OnePlus put on their official cables, the plastic tab with the contact points does not sit firmly in the USB ports on my computer.
I want to get a couple of replacement USB cables for charging and data transfer but I don't know which cables would work with my OnePlus One. I would like to avoid an official OnePlus Micro USB cable as the USB connector is too loose.
Can anyone suggest a cable for me to get? I would like it to be able to charge at full speed and also work with USB file transfers and have a normal USB head on the cable so it sits firmly in the port.
I just don't want to order a wire and find out it doesn't work with the phone. I seem to remember my phone has always been picky with USB cables and I do have some driver issues that may be caused by the wire type.
Thanks,
donk165
Click to expand...
Click to collapse
Using 1+'s original cable is always the best get.

donk165 said:
Hi there,
So my original OnePlus data/charging cable is damaged and I have to put it in a certain position to get it to charge my phone. I had a spare but my friend has left it at his parents house and I don't think I'm going to get it back. I've been using the short charge cable that came with my OnePlus power bank to charge my phone.
I tried some old micro USB cables that I had lying around from older devices. They work for charging but they don't seem to let me connect my phone to my PC.
I also do not like the style of USB head that OnePlus put on their official cables, the plastic tab with the contact points does not sit firmly in the USB ports on my computer.
I want to get a couple of replacement USB cables for charging and data transfer but I don't know which cables would work with my OnePlus One. I would like to avoid an official OnePlus Micro USB cable as the USB connector is too loose.
Can anyone suggest a cable for me to get? I would like it to be able to charge at full speed and also work with USB file transfers and have a normal USB head on the cable so it sits firmly in the port.
I just don't want to order a wire and find out it doesn't work with the phone. I seem to remember my phone has always been picky with USB cables and I do have some driver issues that may be caused by the wire type.
Thanks,
donk165
Click to expand...
Click to collapse
Actually, yes. I've had my One for more than 2 years now and changed the cable as well. There are actually 2 cables I can recommend as of now - from Nillkin and from Aukey. Both are sturdy, solid, fast and just do their job as good as they should. Aukey, however, is much better in one aspect: it's longer. 2m vs 1.2m. Aaaaand it still charges with full 2.1A current, which, in my opinion, is pretty awesome. Both of them are also pretty cheap - you can buy them for ~ 5$ - just search for them on Aliexpress

I had good experiences with Sharkoon and LogiLink cables.

I've got the 5 pack from Anker and it's doing well. On a test it had good performance and was very cheap on Amazon.
Item model number: AK-B7103011
ASIN: B00Q88RI0S

You should get USB cable with Micro USB

Thanks for the replies, I guess my main concern was getting a USB cable that works for data transfer. I ended up ordering a triple pack of Aukey USB's. 2 x 1m and 1 x 2m cables. The description said that they work with 2.1a chargers and USB 2.0 data transfer which is what I need.
Thank you for the suggestions !

Can you please share the link of the purchase
donk165 said:
Thanks for the replies, I guess my main concern was getting a USB cable that works for data transfer. I ended up ordering a triple pack of Aukey USB's. 2 x 1m and 1 x 2m cables. The description said that they work with 2.1a chargers and USB 2.0 data transfer which is what I need.
Thank you for the suggestions !
Click to expand...
Click to collapse
Can you please share the link of the purchase. I also need one to buy and can't find the best option. Thanks in advance.?

tilakdebnath said:
Can you please share the link of the purchase. I also need one to buy and can't find the best option. Thanks in advance.
Click to expand...
Click to collapse
https://www.amazon.co.uk/AUKEY-USB-...d=1488165703&sr=1-3&keywords=aukey+usb+3+pack
Here you go, that's the exact pack I bought.

Is this as good as the original cable for charging & data transfer

You can try BlitzWolf reversible micro usb cable. It's able to charge with full 2A current and most funny, it's really reversible, so it does not matter which side you connect to your phone (unlike normal micro usb connector).

tilakdebnath said:
Is this as good as the original cable for charging & data transfer
Click to expand...
Click to collapse
Yeah, it charges quickly, and data transfer works great. I haven't benchmarked it or anything but its doing its job, and the 2m cable is great! It still charges quickly despite being longer. The micro USB head has a satisfyingly click when plugged in and the USB head is normal and works well.

donk165 said:
Yeah, it charges quickly, and data transfer works great. I haven't benchmarked it or anything but its doing its job, and the 2m cable is great! It still charges quickly despite being longer. The micro USB head has a satisfyingly click when plugged in and the USB head is normal and works well.
Click to expand...
Click to collapse
Thanks a lot !!☺