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USB unknown device

I've tried the drivers from Samsung, Keis, ODIN one click. None of them worked on 4 different machines, Windows 7 both x64 and x86(which was a fresh install), and two Windows XP machines. I tried it on Ubuntu(10.04 LTS) and that recognized the captivate.
Anyone know how to get one of those to correctly recognize my Captivate so I don't stuck on Samsung's/AT&T's 2.2

uninstall all of the driver that you downloaded. uninstall kies. then go to samsung.com search for the captivate, choose you phone, click the 'i own this' button. then go to get downloads, software. click on the .zip file icon next to usb drivers. if that didnt work uninstall them then download kies again. if it still doesn't install them, open kies, click menu, reinstall drivers

What is it that you're trying to do?
Sent from my SAMSUNG-SGH-I897 using XDA App

If it is coming up unknown device try another port. You may want to try another microusb cable as well.
Sent from my SAMSUNG-SGH-I897 using XDA Premium App

I've always had luck with the drivers in the captivate aio toolbox. Even on a fresh win7 64bit when I replaced my boot drive with a ssd a month ago.

Samsung really failed at the USB drivers for the Captivate. I would expect to be able to install the drivers from their website. Plug in my phone, and have it working.
trell959 said:
uninstall all of the driver that you downloaded. uninstall kies. then go to samsung.com search for the captivate, choose you phone, click the 'i own this' button. then go to get downloads, software. click on the .zip file icon next to usb drivers. if that didnt work uninstall them then download kies again. if it still doesn't install them, open kies, click menu, reinstall drivers
Click to expand...
Click to collapse
I tried that before, didn't work.
bornjamerican said:
What is it that you're trying to do?
Click to expand...
Click to collapse
I'm trying to:
1) connect as a mass storage devices. Yes I know turn on USB debugging and to mount the drive.
2) flash back to stock 2.1 or root my phone so I can install a custom ROM on it. Might go with CM7/MiUi or something from Team Phoenix. So use Odin3
shinji257 said:
If it is coming up unknown device try another port. You may want to try another microusb cable as well.
Click to expand...
Click to collapse
Tried all of the ports on the computers. I don't have another microusb cable to test to see if that's the problem, but I'll check that tomorrow.
Johnnie5000 said:
I've always had luck with the drivers in the captivate aio toolbox. Even on a fresh win7 64bit when I replaced my boot drive with a ssd a month ago.
Click to expand...
Click to collapse
I'm going to try a fresh install of windows 7 32-bit with aio toolbox see if that works.
Tried my friends brand new microUSB cable. It worked.

I have tried 4 known good cables know, 4 different computers and every USB port available on all 4 of the PCs I tried. Only once did it identify the device and install the drivers and I was able to root it but I still can't sideload because after the reboot after rooting it is back to device not recognized/unknown device. This has been a total pain. Any suggestions? I'm not with AT&T any more so I am out of luck for just bringing it into a store and asking them to take care of it.
Edit: Sorry for bumping an older post but I did it instead of starting a new thread.

rmriggin said:
I have tried 4 known good cables know, 4 different computers and every USB port available on all 4 of the PCs I tried. Only once did it identify the device and install the drivers and I was able to root it but I still can't sideload because after the reboot after rooting it is back to device not recognized/unknown device. This has been a total pain. Any suggestions? I'm not with AT&T any more so I am out of luck for just bringing it into a store and asking them to take care of it.
Edit: Sorry for bumping an older post but I did it instead of starting a new thread.
Click to expand...
Click to collapse
If you're just trying to transfer apk files to it for sideloading, you can use a wifi transfer app. I use Wifi File Explorer and it's great. You can connect to your phone via web browser and upload/download anything on the SD card.
Another option is to use an external SD card that you can remove and plug into your computer, transfer the files to it, then insert it back into the phone.
This won't work for connecting to PC apps like Odin, Heimdall, or Kies, but for simple file transfers it works like a charm.
Additionally, regarding other usb cables, you didn't mention what types of cables you used, so I'll throw in another thought. The cables that come with the Captivate don't work on some PCs (like my new iMac). Third-party, generic usb cables might not work, either (I tried some and got a whole lot of fail). The only cable that works for me is the one that came with my wife's Motorola phone. If you haven't tried one yet, I would recommend getting your hands on a Motorola cable and testing it out. You'll immediately notice the cable is much thicker. I don't know if that has anything to do with why it works when others don't, but there's something about that cable that others don't have.

Bad Phone?
Could it be the phone port is having issues?
I've had the same problem and it seems that the port on the Captivate is shot which may be your issue. it will always charge; but tends to cause a lot of profanity when trying to get a PC connection to transfer files or flash it. It will be seen, then immediately play the 'unplugged' sound from windows. I've sat there and had it play the tones of plugged in and un plugged over and over again just by tilting the phone from side to side. No matter what cables I use (tried several but they are all samsung due to the recessed port). If it establishes the connection; I have to be very still with it or it'll lose it. If it loses it; I get unknown device messages or not functioning messages on that port until I reboot the PC.
Trying to flash anything via ODIN takes a lot of patience.
Those same cables / USB ports are used on my wife's Focus without ever having a problem. I wrote it off as too much flashing / overclocking of my phone but am not sure.

hi i was having this issue as well. i solved it by:
1. download a good & stable miui rom, rename it to update.zip and place it into your sd card. i took the sd card out of the phone and used a adapter to connect the sd card to my PC since i can't access my sd card through the usb port.
2. put the sd card back into my phone, turn off my phone. press and hold volume up and down buttons, then press n hold the power button till the screen shows something.
3. select install from sd. wait until the installation finishes and select reboot the phone.
4. when you're in your new miui rom, try to connect your phone to the pc via usb port again.
this worked like charm for me.
about the miui rom, i suggest you to use the one from miuiandroid.com (the UK version)
after flashing the rom im able to connect via usb and use mass storage.
hope this helps

Also, when you uninstall drivers, don't forget to look in the program files for anything that may have been left behind and delete it.

From the description it sounds strongly like you are actually experiencing a port failure which is common on the Galaxy S devices. PM me if you need this repaired...

Only try another usb cable, i bricked my cappy with a bad contact cable on odin, unknown device too, new cable=i897 device on windows notifications
try and feedback!

strange, this only happened to my when i soft bricked my phone. try connecting it to your computer in download mode

I had this issue once before. Here is what I did which resolved the problem. I was using a windows 7 PC
1. Download the ADB kit and extract it to C drive.
2. Connect your mobile to the PC on USB port
3. Wait for the drivers to be installed automatically (it might give you a failed to install message)
4. Never mind that message. Open Device Manager
5. In Device Manager, if you expand the "Universal Serial Bus Controllers", you'll see a device that has yellow question mark against it. This is your phone and since drivers are not installed properly, it has the question mark.
6. Right click that device, and select "Update Driver".
7. IN the window that comes up, select "I'll select a driver".
8. Browse to the folder where you have extracted the ADB kit on C drive
9. Check include subfolders and click Next.
10. The drivers should be be installed and your device should be identified by the computer.
Let me know if it works for you.

usb mode

usb mode keeps starting and shutting off very rapidly. i cant transfer files. what could cause this. and its a brand new phone by the way

roughneckboren said:
usb mode keeps starting and shutting off very rapidly. i cant transfer files. what could cause this. and its a brand new phone by the way
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Click to collapse
Are you talking about trying to transfer files to/from a USB flash drive? If so, I've encountered the same. I spoke to Samsung tech support and they confirmed that the I727 Skyrocket is not OTG USB Host Enabled... while the GS2 I777 stock kernel is Host enabled. That said, there was one member on this forum who states their stock Skyrocket is OTG USB Host enabled (allowing him to transfer files to/from a USB flash drive). We need a developer to advise if/when a kernel (preferable stock + otg USB host enabled) can be developed for our i727 Skyrocket.
If you talking about transferring files to a computer, you should have that capability. Make sure USB Debugging is checked on phone and you have the correct drivers installed on your PC.

I'm talking about transferring files(pictures,movies,etc..) I have USB debugging enabled and I downloaded the drivers presented on the forums here. It just connects then disconnects repeatedly. I'm pretty sure its a driver issue but I'm using the ones from xda. I'm not sure where to go from here. Any help would be appreciated
Sent from my Xoom using xda premium

roughneckboren said:
I'm talking about transferring files(pictures,movies,etc..) I have USB debugging enabled and I downloaded the drivers presented on the forums here. It just connects then disconnects repeatedly. I'm pretty sure its a driver issue but I'm using the ones from xda. I'm not sure where to go from here. Any help would be appreciated
Sent from my Xoom using xda premium
Click to expand...
Click to collapse
You're not supposed to use USB Debugging for transferring files like that.
Just turn off debugging.
Then when you plug in the USB cable, the notifications bar should let you know it's connected. So click on that notification about the USB, then click the option to "connect".
It's kind of redundant if you ask me, but it's how it works.

I know it don't have to be ticked to transfer files. It does it whether its on or off. I'm just trying to get it to stay locked in so my computer recognizes it
Sent from my Xoom using xda premium

And it also makes it quite frustrating to flash or anything via computer
Sent from my Xoom using xda premium

Well I'm not sure then. Here's a few things to try:
1) Different USB port on your computer. If you're using a rear port, then try a front port. Sometimes they use different chipsets.
2) Different USB cable. They can get flakey sometimes.
3) Go into 3E Recovery and clear cache. Could be a setting that got whacked out.
---------- Post added at 04:06 AM ---------- Previous post was at 04:06 AM ----------
roughneckboren said:
I know it doesn't have to be ticked to transfer files.
Click to expand...
Click to collapse
Sorry, pet peeve of mine.

Do you mean davlik cache?
Sent from my Xoom using xda premium

[Q] USB connection related problems

hello,i have several problems that are making me very angry.i use updated windows 7 32 bit.
1.i have samsung kies and my device was working normaly,but then today when i connected my phone to pc i got code 43 error device not recognized.i tryed reinstalling kies uninstalling drivers re installing nothing helps i cant even connect when i am in download mode same error.I NEED SOME ANSWERS ASAP COZ IT IS DRIVING ME CRAZY.
2.this one is bit smaller but also annoying,it was happening while usb connection was still working,when i connect my phone(any mode kies or mass storage),then when i copy files from pc to phone it working fine,but when i try to copy something from phone to pc i get random disconnects (connection loss) there is no logical explenation coz its totally random,lets say i copy 100 pics i get dc after 10 then i reconnect phone and click retry he copy 15 more and dc again.
Any1 will any solution plz help coz my phone is at mess atm and cant flash anything.

the source of the usb issue may be your computer.
1) did you always use the same usb port for your phone?
2) how old is your computer?
3) do you live in a humid environment?
I live on guam, and on my older laptop (only two years old!!!), running winxp, 3 of 4 usb ports are no longer usable due to corrosion. they give errors and even when working, sometimes I could lose the connection by moving the cable slightly. also, the last usb port is now getting difficult to use because it's hard to plug in anything
so, if you answered yes to #1, try another port and be prepared to install the drivers again.
if you answered yes to #3, be prepared to replace your usb if they are indeed corroded

well thnx for answer,but my pc is new like 7 months old,usb ports are working just switched mouse and phone mouse working phone not.its driver relater before i had that error and some1 from xda told me to delete everything(kies drivers) related to phone and his drivers and it worked i also see that error(code 43 is common) but fix with uninstalling driver(worked before now doesnt).thing is that something at that moment didnt work well on phone(last time it was my external sd card had to format it)and now pc keeps repeating same error.simply even tho all drivers are installed i get device not recognized,and under device manager it unknown device,also when i tick option to see hidden devices i see omap 3630 but state is unconnected.

xGiox said:
1.i have samsung kies and my device was working normaly,but then today when i conne.............
2.this one is bit smaller but also annoying,it was happening while usb connection was still working,....................
Click to expand...
Click to collapse
When transferring files to and from pc, do you use the original USB cable that came with the phone? Because when i use other cables, i have this issue, when i use the original cable, no probs at all.
if that also doesnt work, try formatting internal and external SD cards

xGiox said:
well thnx for answer,but my pc is new like 7 months old,usb ports are working just switched mouse and phone mouse working phone not.its driver relater before i had that error and some1 from xda told me to delete everything(kies drivers) related to phone and his drivers and it worked i also see that error(code 43 is common) but fix with uninstalling driver(worked before now doesnt).thing is that something at that moment didnt work well on phone(last time it was my external sd card had to format it)and now pc keeps repeating same error.simply even tho all drivers are installed i get device not recognized,and under device manager it unknown device,also when i tick option to see hidden devices i see omap 3630 but state is unconnected.
Click to expand...
Click to collapse
Jack_Random said:
When transferring files to and from pc, do you use the original USB cable that came with the phone? Because when i use other cables, i have this issue, when i use the original cable, no probs at all.
if that also doesnt work, try formatting internal and external SD cards
Click to expand...
Click to collapse
i use original cable and also i did format both external and internal cards several times my first problem is kinda more important atm.

ok i tried connecting my phone to secondary pc running xp gave me same error but simple uninstall of driver and reinstall made it work cant fix it on win 7.
Edit: damn phone wont connect when in download mode cant flash anything -.-.

Connect the phone and go to device manager
If you see the i9003 driver uninstall it then connect the phone to pc again
now windows 7 will download the driver automatically
that's how I fixed my problem

Win7 Will Not Connect To Xoom

I just got a new Win7 Pc and now when I try to connect my Xoom to it it says Unknown MPT device. I tried installing the drivers to no avail. I didnt have this problem on XP. I am running stock ICS on my WiFi Xoom. Any ideas?

Where did you get these drivers from? Try the ones directly from Motorola.

You could drive removing the current drivers and SW. Try just using the device then runnign the moto install for those drivers. Make sure USB is enabled correctly on the tablet too. Is it charging from the usb connection? You could try a different port it shoudl charge regardless.

drew4452862 said:
You could drive removing the current drivers and SW. Try just using the device then runnign the moto install for those drivers. Make sure USB is enabled correctly on the tablet too. Is it charging from the usb connection? You could try a different port it shoudl charge regardless.
Click to expand...
Click to collapse
Xoom doesn't charge via USB..

I am using the drivers and software directly from Motorola. I have tried it with USB debugging on and off. I have tried switching it from MTP to PTP on the Xoom and still the same results.

bigslam123 said:
I am using the drivers and software directly from Motorola. I have tried it with USB debugging on and off. I have tried switching it from MTP to PTP on the Xoom and still the same results.
Click to expand...
Click to collapse
Go into device manager and see what's up. Make sure xoom is plugged in beforehand. Right-click My Computer -> Manage -> Device Manager.
If there are no errors (!) to do with the xoom, then some form of driver is installed. Manually delete these by right-clicking on them.
Then take out xoom, and put it back in. Win7 should automatically find the MTP drivers.

TheStickMan said:
Go into device manager and see what's up. Make sure xoom is plugged in beforehand. Right-click My Computer -> Manage -> Device Manager.
If there are no errors (!) to do with the xoom, then some form of driver is installed. Manually delete these by right-clicking on them.
Then take out xoom, and put it back in. Win7 should automatically find the MTP drivers.
Click to expand...
Click to collapse
I'm getting the same exact problem and I've gone through uninstalling windows media 12 to acquire the mtp drivers and nothing, i can't even get it to install wmp11.grrrrrrrrrrrrr

does the xoom show up in Windows Explorer under "Computer"?

[Q] phone not recognized as storage when connected to laptop

HI all, I seem to have a problem getting my laptop (ubuntu 12.04) to recognize my phone as storage when connected via USB. Here's what happened. I have already enabled USB debugging and USB debugging notify. When I plugged the phone to my laptop I got the usual message on the screen of my phone an when I clicked on it there were 2 tick boxes: one to recognize the phone as camera (that by the way worked) and the other one that recognized the phone as storage: when ticked nothing happened on my laptop, so I unticked both and now that bloody message is not coming up anymore on my phone, I only got one which says "USB debugging connected". ANy idea?
thanks

Disable the USB debugging... It's not needed for storage connection.
Sent from my One using XDA Premium 4 mobile app

HI thanks, ok fair enough but somehow I seem to have messed up with it and I would like to fix it if I can: I can't get the usb debugging mode message up when I connect the phone and the laptop doesn't recognize it as storage, not only ubuntu but even windows! could it be a matter of drivers? If so where can I get them from?
thanks

Menu>Storage>*menu on the upper right corner*>USB computer connection>*check box MTP/PTP*

happygolucky919 said:
Menu>Storage>*menu on the upper right corner*>USB computer connection>*check box MTP/PTP*
Click to expand...
Click to collapse
Thanks. When I connect the device as PTP it gets connected but when I do it as MTP , computer shows the error that drivers are not installed.

I'm having a similar problem on my phone, there is no option to change USB computer connection, so phone not regonised when plugged into PC? Any ideas?

MTP is a proprietary and modern protocol, older or open source OS's will not support it out of the box. You will need the relevant drivers, not sure how to do it on older version of Ubuntu, may be worth looking in their forums (support is included in new version in the proprietary driver bundle). There are no drivers for Windows XP, but you can get them for Windows 7, I'll dig out the guide I have bookmarked somewhere.

IIIIkoolaidIIII said:
MTP is a proprietary and modern protocol, older or open source OS's will not support it out of the box. You will need the relevant drivers, not sure how to do it on older version of Ubuntu, may be worth looking in their forums (support is included in new version in the proprietary driver bundle). There are no drivers for Windows XP, but you can get them for Windows 7, I'll dig out the guide I have bookmarked somewhere.
Click to expand...
Click to collapse
Thanks. That would be of great help.

Dush123 said:
Thanks. That would be of great help.
Click to expand...
Click to collapse
Here are the three guides I have bookmarked relating to MTP, I think the first from Tom's Hardware should fix (download is in 3rd post).
http://www.tomshardware.co.uk/forum/50119-63-devices-working
http://forum.xda-developers.com/showthread.php?t=2390296
http://forum.xda-developers.com/showthread.php?t=2391236
Hope these help.
B
---------- Post added at 09:22 AM ---------- Previous post was at 09:21 AM ----------
Oh yeah the other thing I didn't mention is MTP honors your phones security, so if you have a secure lock it won't show up initially until screen is on and device is unlocked.

Same issue, no options under USB computer connection !
boringfrog said:
I'm having a similar problem on my phone, there is no option to change USB computer connection, so phone not regonised when plugged into PC? Any ideas?
Click to expand...
Click to collapse
Hi, boringfrog,
were you able to get the issue resolved ?
After the phone upgraded from 12.0-YNG1TAS17L to 12.0-YNG1TAS2I3, i am seeing the similar issue, my phone will only charge on a Laptop, i tried different cables, 2 laptops, uninstalled and re-installed drivers, nothing works, i did a dirty flash back to 12.0-YNG1TAS17L the issue still exists, i tried enabling and disabling ADB debugging etc...
Under storage options , under the three dots on the right i see the USB computer connection, upon hitting it , nothing happens, the storage page just refreshes... no options to mount as MTP....
Please help need to copy the data from phone to PC...

mkhanemkay said:
Hi, boringfrog,
were you able to get the issue resolved ?
After the phone upgraded from 12.0-YNG1TAS17L to 12.0-YNG1TAS2I3, i am seeing the similar issue, my phone will only charge on a Laptop, i tried different cables, 2 laptops, uninstalled and re-installed drivers, nothing works, i did a dirty flash back to 12.0-YNG1TAS17L the issue still exists, i tried enabling and disabling ADB debugging etc...
Under storage options , under the three dots on the right i see the USB computer connection, upon hitting it , nothing happens, the storage page just refreshes... no options to mount as MTP....
Please help need to copy the data from phone to PC...
Click to expand...
Click to collapse
Sorry it was a friends phone so I just returned it to him after try a few attempts. Can you not put your data into the cloud then you can access it on your PC? Good luck.

PC not recognizing OnePlus 2 after update to Oxigen 3.0.1
What seems to solve the problem is to pull down the notifications bar, which shows one notification which gives you multiple options for the USB. Please choose the file download option(usually the second option). Your OPT will show up on the PC.
Thanks and regards to all.