I had my 7.7 for some time and about 2 days ago i've bought a cheap chinese usb otg cable from some shoup around here. I thought it would be as simple as pluging it in and connecting some usb stick like i've done with justabout all usb otg stuff i previously owned. But it doesn`t do anything. I`ve tried other usb devices, the tab simply doesn`t power them at all. I`ve also disasembled the cable and measure it, everything is fine. I`m on stock ics 4.04, also tried a couple of kernels, it just doesn`t work.
Has anyone encountered such a problem.? Damn weird....
motoi_bogdan said:
I had my 7.7 for some time and about 2 days ago i've bought a cheap chinese usb otg cable from some shoup around here. I thought it would be as simple as pluging it in and connecting some usb stick like i've done with justabout all usb otg stuff i previously owned. But it doesn`t do anything. I`ve tried other usb devices, the tab simply doesn`t power them at all. I`ve also disasembled the cable and measure it, everything is fine. I`m on stock ics 4.04, also tried a couple of kernels, it just doesn`t work.
Has anyone encountered such a problem.? Damn weird....
Click to expand...
Click to collapse
I have an original cable but also bought an after market one that verizon had made available for their version of the 7.7
I bought it here:
http://www.wirelessground.com/samsung-galaxy-tab-wall-charger-verizon.html
Excelllent service and price. Works great and quality build
---------- Post added at 11:32 PM ---------- Previous post was at 11:24 PM ----------
whitehawk66 said:
I have an original cable but also bought an after market one that verizon had made available for their version of the 7.7
I bought it here:
http://www.wirelessground.com/samsung-galaxy-tab-wall-charger-verizon.html
Excelllent service and price. Works great and quality build
Click to expand...
Click to collapse
!
errrr....I think I misread your issue and specific item...
sorry!
Still great though!
The usb otg cable is just a plain simple usb cable with a 20kilo ohm resistor placed between 2 pins on the galaxy tab 30pin connector. That's about all the things inside the actual cable. When you plug it in, the tablet should figure out that the 20k resistor made contact with the pins and an accesory was connected. Mine doesn't. The cable is fine, i think there's something wrong with the tablet. Doesn't it supossed to power on whatever you insert on that usb port? Because i can't get those 5v on the port.
I don't know if it's a software or hardware problem....
motoi_bogdan said:
The usb otg cable is just a plain simple usb cable with a 20kilo ohm resistor placed between 2 pins on the galaxy tab 30pin connector. That's about all the things inside the actual cable. When you plug it in, the tablet should figure out that the 20k resistor made contact with the pins and an accesory was connected. Mine doesn't. The cable is fine, i think there's something wrong with the tablet. Doesn't it supossed to power on whatever you insert on that usb port? Because i can't get those 5v on the port.
I don't know if it's a software or hardware problem....
Click to expand...
Click to collapse
what file system is your USB Stick using? try formatting the stick to FAT32 and see if its a file system issue
have you tried using another OTG cable? I'm also using a china knock off bought for 4 bucks, running stock ICS and it detects most of the thumb drives I attached to it
thanks for the replies but the situation is kind of different in my case.
In order for the tablet to read what kind of filesystem you have on a usb mass storage device (stick, hdd, whatever) it must first power it on and then attempt to access it. In my case, it simply doesn't power on. So, it doesn't matter what kind of file format it has. Also, if i plug a mouse/keyboard, it won't work either.
I thought that maybe it's a broken wire inside the connector, so i took it apart and measured each pin. The otg adapter is fine, it should do the job. I've also tested on another samsung tab and it worked straight away. It seems there's something wrong with my tab. However, other then this, the 30 pin port on the tab itself seems to be working fine.
Related
Hello,
does anyone know where can I purchase a USB Cable for my Galaxy S so that it could be detected by kies?
thanks.
The cable used is a standard Micro USB cable, nothing special.
Yes, any standard Micro USB cable work.
you can buy for less than $2 over Hong Kong site
Be careful, once I bought a couple of cheap cables for my SGS on eb.. and they resulted to be only good for charging (and the charge is really slow), no usb file transfer, no Odin,...
I use this one from dealextreme: http://goo.gl/qYLSz, "Genuine" Nokia CA-101. Works very well with well everything...
cabessius said:
Be careful, once I bought a couple of cheap cables for my SGS on eb.. and they resulted to be only good for charging (and the charge is really slow), no usb file transfer, no Odin,...
Click to expand...
Click to collapse
THIS IS WHAT I AM TALKING ABOUT.
I bought a cable for £2, thought it was dirt cheap.
but looks like Samsung restricts usage of other cables on its phones. It doesn't allow the phone to be detected as a MTP device? or in Kies.
I tried several different cables.
Never had any problems.
(original Samsung, Nokia, Moto, Nokia from.Dealextreme, cheap cables, Kindle,....)
Sent from my GT-I9000 using Tapatalk
emclondon said:
but looks like Samsung restricts usage of other cables on its phones. It doesn't allow the phone to be detected as a MTP device? or in Kies.
Click to expand...
Click to collapse
I can't help but think this is blatantly false. I've even made my own micro-USB cable for my tests on battery charging and it still had zero problems.
The USB spec doesn't allow a device to discriminate on cables. If there was something different in the cable then it would affect the computer side as well.
Now on the other hand the USB connectors themselves are fragile as all heck. I've been through many failed cables over the years in both mini and micro USB cables. Chances are the cable itself is bad.
The cable which I bought was good I think. It was charging, and I could connect it into USB mode. But I couldnt connect it into MTP mode.
I don't think I have even used my Samsung cable that came with the phone, Im not even sure where it is now too LOL
I have a Nokia N900 too so I use that cable (Nokia CA-101) instead and everything works fine
Kies however is a completely different kettle of fish and has always been temperamental at the best of times, especially in Windows 7
Now I use Galnet MIUI Rom I no longer (thankfully) have to use Kies
anyone know where to get an official cable in the UK?
ahhhhh wow looks good!
Stop spamming dude?
I bought cheap usb cable from ebay.
date transfer is really slow and somethimes it give's not dedected error.
So it's importand to buy goed one.
I use my old cable from samsung i8510 now at work
I've bought 2 of these and they are working well.
I use them to stay permanently connected to my docking station in the 2 offices I'm working
http://cgi.ebay.de/ws/eBayISAPI.dll?ViewItem&item=250784404938&ssPageName=STRK:MEWNX:IT
So, I purchases a USB OTG cable in an attempt to try and expand the functionality of Webtop while using Nebtop. I've been unable to get any response from the phone when I plug in this cable. I've tried my wireless Logitech mouse and keyboard that worked off the bat with my TF101 using the Unifying remote they came with as well as an external TB drive.
Has anyone else had any experience with this? It seems logical that the phone supports host mode since the actual dock has 3 full sized USB ports.
All the information pertaining to this sort of thing I've come up with seems extremely phone specific but if there's a simple solution I'm missing thanks all the more.
ri4naire said:
So, I purchases a USB OTG cable in an attempt to try and expand the functionality of Webtop while using Nebtop. I've been unable to get any response from the phone when I plug in this cable. I've tried my wireless Logitech mouse and keyboard that worked off the bat with my TF101 using the Unifying remote they came with as well as an external TB drive.
Has anyone else had any experience with this? It seems logical that the phone supports host mode since the actual dock has 3 full sized USB ports.
All the information pertaining to this sort of thing I've come up with seems extremely phone specific but if there's a simple solution I'm missing thanks all the more.
Click to expand...
Click to collapse
The problem actually lies in the usb port of the phone itself. The dock was designed for this purpose, and the dock app handles most that for you, the one thing that the dock is able to do that a straight USB cable can't do, is provide enough "bus" power to use a mouse or even a USB stick directly from the phone. If you want to use a Mouse you will need to get a dock. I got mine directly from wireless.att.com, and it was only $49.00 back in Nov. when I got it. It works VERY well with webtop.
P.S. Motorola is very famous for doing things like this to force you into a dock, or to lock out certain features that everyone really wants to use.
I made my own dock by using a powered usb hub I had sitting around (it was actually the one that came with Rock Band for my Xbox 360). I did have to modify it slightly so that the 1 pin was powered from the 5V (a simple shunt from the 5V inner pin of the power supply solder joint to the solder joint of the 1 pin worked fine--although it might be wise to insert an inline fuse since it also charges your phone while plugged in).
Otherwise, the only other thing needed is coming in the form of your otg adapter that should short the 5 pin (common) with your 4 pin (ID). I did this by cracking open an extra micro usb cable and soldering a wire between the two.
So, my setup was like this:
1. Modified usb cable to short the 4 & 5 pins to let the phone know to go into host
2. Use a female A-female A usb coupler to join the usb cable to the powered hub (I got mine here from Monoprice
3. Get 5V to the 1 pin in the usb hub to provide power to your phone and for whatever is plugged into the hub.
With this, I was easily able to run a usb mouse and a wireless keyboard that had a usb dongle. Paired with a micro hdmi cable to hdmi-dvi adapter, I am able to use my office monitor and the webtop linux. I honestly haven't really used it much yet (if I found it really useful, I probably would have just paid for the dock).
The obvious easy way is to just get the dock. However, I really like being able to do this on my own and since I had this stuff already laying around. Also, the cheap prices from monoprice (I actually made $4 off of the purchase from a PayPal bill-me-later promotion).
So, you should be able to get it to work if you get power to the bus on your usb (but again, it might be safe to pass an appropriate fast-acting fuse, ferrite core, or something to protect from surges). I haven't had issue yet, but I also don't use it often...yet .
It sounds like a bit of yes and a bit of no. The OTG cable I got is microUSB to female full USB, am I going to need to modify this cable as you've described by crossing the 4th and 5th pins?
I'm thinking about ordering this "7 Port USB Squid Hub" since it has the 5v power adapter, do you think it might work?
Just one more question and thanks for all the help but should I not see any response from the phone when I plug in the cable? I read through some of the reviews for cheap cables on Amazon and apparently sometimes they're just useless.
ri4naire said:
It sounds like a bit of yes and a bit of no. The OTG cable I got is microUSB to female full USB, am I going to need to modify this cable as you've described by crossing the 4th and 5th pins?
I'm thinking about ordering this "7 Port USB Squid Hub" since it has the 5v power adapter, do you think it might work?
Just one more question and thanks for all the help but should I not see any response from the phone when I plug in the cable? I read through some of the reviews for cheap cables on Amazon and apparently sometimes they're just useless.
Click to expand...
Click to collapse
The OTG cable have should work. The OTG cable, to my knowledge, should already have pins 4 & 5 shorted together. I'm not completely certain, but if it's designed as an OTG, it would probably already have that done. If you have an ohmmeter/multimeter, you could try to check (it's hard to isolate the small pins, but you can try). If it's already going to the USB female (type A), you will then be able to directly attach your hub when you get it (without the need of the coupler I had to get).
When I used mine, there was no notification that said "Hey, I'm in USB Host Mode!". However, if you successfully have a mouse attached, you'll see a mouse cursor arrow on your screen.
Have fun with it and if you can't get it to work, let me know and I'll try to explain with even more detail (perhaps with some pretty pictures) of what I did. I more or less went off of what I could glean from reading what others did.
It works great! Also, it is weird to see the mouse on this little a screen, it seems oversized.
I just plugged everything in and it worked off the bat. I'm using just two items from Amazon I got for under 12 bucks (plus, of course, the keyboard and mouse I already had for my computer). I don' think I can post links to the forums yet but the ASINs for the items if people want to do this on the super cheap are as follows:
B0043TBCDS 7 Port USB Squid Hub, a whopping $5.19
B005N55WHI Micro-B USB OTG Cable... $5.99
I chose these because of their Prime eligibility and also for their form factor so as not to cover the HDMI port, I bet it's not impossible to get these even cheaper.
While this isn't technically a replacement for the dock since I had to root the device and I have to press "Load" in Nebtop if I want to go to Webtop I'm extremely pleased with the results.
I also love that all the soft keys are available. The ones I've discovered are that right button on the mouse as well as Esc are Back, the Home key is Home, clicking the wheel as well as Ctrl, Cmd, Alt and a whole slew of others bring up the Menu, but all I can find is F5 for Search.
On another note, while the phone does charge when hooked up, a practical boon, the screen still times out despite having the "Stay awake" feature checked. This is annonying when the phone is on it's side accross the room and I have to squint to see the cursor and swipe it unlocked sideways as well as click back into Mirror Display.
Are there any Roms that support usb otg.
I'm on clean rom 2.5 and can't get it to work. Also the few Roms I have tried it hasn't worked.
Sent from my SCH-I535 using xda app-developers app
CleanRom 2.5 (and 2.1 before that) and it works fine for me. Higher-drain usb devices might need their own power source.
What kind of usb otg are you using maybe I have the wrong cord. Did you have to enable any options?
bsannes said:
What kind of usb otg are you using maybe I have the wrong cord. Did you have to enable any options?
Click to expand...
Click to collapse
I used what I thought was a non-OTG micro-usb-to-usb adapter, and then a cheapo OTG cable and both worked with a wired Xbox 360 controller. The cable also worked with a flash drive. I haven't really tried any other devices.
The ones I used were:
http://www.amazon.com/T-Flash-Adapt...UTF8&qid=1350406382&sr=8-1&keywords=otg+cable
and something like this:
http://www.amazon.com/SANOXY-Micro-Male-Female-Adapter/dp/B0027YYMU6/ref=pd_sim_cps_8
I didn't enable/disable anything when I did the tests -- it just worked. Possibly I had done something earlier, but I can't remember anything specific, and haven't done any specialized hacks for this.
Yeah I have the same cord odd. Oh well .
Thank you for taking the time to supply the links.
Is it possible to attach a powered hub to
A) Attach higher power-requirement devices that do not have external power
and/or
B) Attach multiple devices for simultaneous use (say, a keyboard and a mouse
??
(my USB OTG cables are in the mail)
crabapples said:
Is it possible to attach a powered hub to
A) Attach higher power-requirement devices that do not have external power
and/or
B) Attach multiple devices for simultaneous use (say, a keyboard and a mouse
??
(my USB OTG cables are in the mail)
Click to expand...
Click to collapse
I *believe* both answers are "yes". You can attach a usb hub. A powered one should give power to the devices, or you could try a "y" usb cable to provide power as well.
btw, here's a video showing off some of the capabilities (i believe this is the international version):
http://www.youtube.com/watch?v=46IiRyigUH0
---------- Post added at 02:39 PM ---------- Previous post was at 02:37 PM ----------
bsannes said:
Yeah I have the same cord odd. Oh well .
Thank you for taking the time to supply the links.
Click to expand...
Click to collapse
Shoot. I guess I'm not sure what else to try so hopefully someone else can chime in. I haven't tested it out recently, but I'll let you know if I happen to discover anything.
Works fine for me...just plug the otg cable in (I had one from my old fascinate I got off Amazon for like 3 dollars...and I can either plug a single item like a mouse or flash drive straight into it or a hub that can be powered or not...if you plan on using an external hard drive is suggest plugging it in...I believe the phone holds up to like 6usb connections at once but don't quite me on the exact number...I have had a mouse, keyboard, flash drive, sd card reader, and second phone all plugged in at once...only think I've found is that not all usb hubs will work for some reason...I use a 30 dollar (at bestbuy) belkin 6 port hub and never had a problem...to have it powered though you have to plug the actual power cable on the hub into a power source and run a usb cable from the hub to otg cable...as far as I know every room should support this...I used liquid smooth which is an aosp rom and it works great, also works great on any tw Rom as the capability is built into the phone...hope this helps anyone with questions about this...only think I haven't tried is a hard drive mainly because I have no need to buy one but it should work...and if it means anything I use all 2.0 cables and accessories, no 3.0 or 1.0
Sent from my blackened liquid galaxy
Hello,
I think I found a cheaper alternative to Lapdock, but IDK if and how this can work or not.
I found something with external power here and I'm wondering if we can attach a mouse/keyboard with it.
Thanks in advanced,
TCF38012
tcf38012 said:
Hello,
I think I found a cheaper alternative to Lapdock, but IDK if and how this can work or not.
I found something with external power here and I'm wondering if we can attach a mouse/keyboard with it.
Thanks in advanced,
TCF38012
Click to expand...
Click to collapse
It should work as long as you have an OTG adapter or cable that shorts pins 4 (the ID pin) and 5 (ground) that would then connect to the powered hub. These can be bought pretty cheap or just make one with a spare cable. The phone needs to know it is in USB host mode (shorted ID to ground) and there needs to be external power for the peripheral devices.
I just recently bought this , this, and this. The hub has two usb's: one for the phone, which has the otg cable, and the other for power (which I connected with the extension cable). You can then use your regular usb wall charger. Everything works great (attach any usb device you like) and when you attach a micro HDMI to regular HDMI cable to a TV/Monitor, you got yourself a computer like setup. I haven't tried it, but I think you can even attach external storage to it as well.
When did otg start working with atrix 2
shanghei said:
When did otg start working with atrix 2
Click to expand...
Click to collapse
Since ICS
tcf38012 said:
Since ICS
Click to expand...
Click to collapse
Actually, I used it on stock 2.3.6. As far as I know, that's more or less all that the the laptop docks are (with some added signal to know to use webtop when connected).
OK so here is my problem: every time I connect a USB via the micro USB port the device doesn't detect the USB. However sometimes if i am lucky I only need to twist the cable and it works shortly. Probably the cable is destroyed, anyone know if I need exactly this cable or if I could also use a normal micro USB adapter cable. Thank you.
Temporeiches said:
OK so here is my problem: every time I connect a USB via the micro USB port the device doesn't detect the USB. However sometimes if i am lucky I only need to twist the cable and it works shortly. Probably the cable is destroyed, anyone know if I need exactly this cable or if I could also use a normal micro USB adapter cable. Thank you.
Click to expand...
Click to collapse
Well, I'm a bit confused, as the 70x has actually 2 cables.
1. The USB cable that connects to a PC
2. The USB dongle adapter that has a full size USB connector (female) for connecting flash sticks for example.
Regardless, as in number 1, you can't use just any micro USB cable, like the one that comes with a camera for example. You might, but then again, the data connections may be wrong. Best thing is to try. Typically I use my HTC cable. Regardless, you won't damage anything by trying.
As in number 2, well, it may be hit and miss if you get a generic one. The + and - pin layout should be the same, but the data might be different. The only way is to check.
When you twist your cable, make sure it's not actually twisting the connector (micro). This may give false readings, when in fact it could be a damaged micro USB port on the Tab. So check it good.
MD
ok thanx. found a working cable.