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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.

[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

multi user and storage

Hello everybody.
I need to know how to disable the multi user interface in my note 10.1 rooted with pacman rom in jelly bean 4.3.
It is always duplicating the files that I put in it.
For example, if I put the NFS most wanted data files in the android/data folder it gets repeated three or four times in other folders.
If I put it in the emulated/0 folder it gets duplicated and it is present in storage and media and some other folder.
Hence the approx 1 GB file becomes 3-4 GB.
I'm guessing this is due to the multi user interface.
Also I have another problem
The USB connection isn't working.
If I plug it into the pc it doesn't show upon my computer but it charges.
If I out it in USB debugging mode the PC makes the connected sound but I still can't access the folders.
I need help.

The USB connection isn't working.
If I plug it into the pc it doesn't show upon my computer but it charges.
If I out it in USB debugging mode the PC makes the connected sound but I still can't access the folders.
Have you installed the Samsung USB drivers ???

JJEgan said:
The USB connection isn't working.
If I plug it into the pc it doesn't show upon my computer but it charges.
If I out it in USB debugging mode the PC makes the connected sound but I still can't access the folders.
Have you installed the Samsung USB drivers ???
Click to expand...
Click to collapse
Yes I have installed the USB drivers
Its not even working on another computer.
Any idea about the multi user?

:victory:I got both of them to work.
I disabled multi user by tying
fw.max_users 0
in terminal emulator, and made it permanent by typing fw.max_users=0 in the ending of build.prop.
i got the usb to work when i removed pacman and installed official cyanogenmod.
:victory:

[Q] USB oddness 2 Nexus 5 handsets

I have 2 Nexus 5's one is my own, 32gb, rooted with xposed, the other a 16gb unmodified stock
When I connect my phone its shows in 'computer' and I can browse the storage etc as expected.
The stock handset, connected to the same USB port (or any USB port for that matter) it shows in device manager but not in 'computer' so I cant browse the storage.
I dont get why one is working and the other is not, both being the same device using the same drivers?
I tried various combinations of debugging on/off, mtp/ptp mode.
Why is it not showing in 'Computer' as a device?
(Windows 8.1)
EDIT:
Found the solution, Uninstall Driver and check the box to delete the driver files, seems there was a conflict with some clockworkmod driver?...

Cannot connect OPO to PC

Hi there!
I used to be able to connect my OPO to my W7 PC. Now I cannot. My OPO original cable is out of service so I have been using a samsung charger and it has worked fine before. Plug in, popup shows, and I can access MTP files. I am aware charge is default and when connect you have to select MTP. But now it isn't even charging.
Ever since I updated to Lineage Marshmallow, I cannot do it. I was able to do it on my work laptop (W10) but on my home PC (W7), cannot anymore. So not sure what I am missing. The same cable is used for both.
-Have Root with usb debug on
-google universal driver installed
-pic of device manager below but cannot browse my phone to install (not recognized)
https://i.imgur.com/DHmV11F.png
Any help would be greatly appreciated

Leeoku said:
Hi there!
I used to be able to connect my OPO to my W7 PC. Now I cannot. My OPO original cable is out of service so I have been using a samsung charger and it has worked fine before. Plug in, popup shows, and I can access MTP files. I am aware charge is default and when connect you have to select MTP. But now it isn't even charging.
Ever since I updated to Lineage Marshmallow, I cannot do it. I was able to do it on my work laptop (W10) but on my home PC (W7), cannot anymore. So not sure what I am missing. The same cable is used for both.
-Have Root with usb debug on
-google universal driver installed
-pic of device manager below but cannot browse my phone to install (not recognized)
https://i.imgur.com/DHmV11F.png
Any help would be greatly appreciated
Click to expand...
Click to collapse
Install mtp drivers(http://www.driverscape.com/download/android-mtp) and update the unknown device with those drivers.
You should always use original cable btw.
https://m.ebay.in/itm/100-Brand-New...us-1-1-One-Plus-One-X-/172481279192?hash=Ng==