usb not working with "unkown device" - Fascinate Q&A, Help & Troubleshooting

I have been using fascinate for 7 months, and now I am using cm7 roms jt's and miui interchangingly. From two weeks ago, the phone started not being recognized through USB with saying "unknown device". I am not sure if it is because I accidently pulled out usb while mounting before.
Currently I am stuck with cm7 roms,which I love of course. no odin works since not recognized by pc. I don't think it is the driver issue cuz it worked fine for some time after switching to cm7 roms.
does anyone having this problem??
Sent from my SCH-I500 using XDA App

I had a similar problem a while back
I knew I had the correct drivers....even though your pc doesn't recognize it odin may still, I would boot odin and put your phone in download mode and see if it will set up a com port..if it did you should be able to use odin still...in my case coming from cm7 build 5(i think) my pc wouldn't recognize my phone but I was still able to odin the atlas 2.2 and eb01 to get back to stock and start over
Sent from my SCH-I500 using XDA App

If you are using Cm7 you need to install the nexus s drivers. I had the same issue until I installed the correct driver. Because of kernel hacks and such PC thinks its a nexus s.

Before installing drivers. Check on your Phone if USB debugging is checked?
I found when i try a rom and this happens, having USB Debugging turned on the PC recognizes the phone no problem.
I used the fas drivers on CM7 on a windows 7 and XP no problem

Thank you very much for all the replies.
I tried the Nexus S driver, but no go. The debugging is also checked.
The Fas driver used to work with my phone when I switched to CM7 roms. But then, somehow it started not working and detected as "Unknown Device".
Odin does not work and no com port is detected since it is "unknown device"
I think I tried everything I can. SD card works fine, and I don't mind having CM7 roms. Actually, I love CM7 roms. Also, for the file transfer, I can just use other methods wirelessly. But, I just feel nervous not being able to Odin. I hope my phone is not broken.

I am having the same probably as u leeh. Cm7 made my comp not recognize my phone .I also tried nexus drivers
Sent from my I500 using XDA App

I had the same problem when I updated to IE 9. I just uninstalled IE 9 and my device was recognized.

Related

[Q] USB Device Not Recognized

So I was hoping some of you guys could help me out.
Recently my Vibrant started to give me trouble with my computer. But it's only my vibrant with my computer. I can connect to any other computer no problem. Any other device is easily recognized by my computer except the vibrant.
It started after using PDANET's tethering app. I was at one point tethering all the time putting my phone in usb debugging mode and running pdanet on my computer. Then I also started using the bluetooth tethering. Once I finally got internet at my new place i stopped using the tethering option. But then I realized when i tried to get files off my phone my computer wouldnt recognized my phone anymore.
The error I get is
USB Device Not Recognized.
One of the usb devices on this computer has malfunctioned and windows does not recognized it.
Usb Root Hub Unknown device.
Try Reconnecting the device if windows still does not recognized it replace the device.
In the device manager the properties of the "unknown device" says
Status: Windows has stopped this device because it has reported problems. (Code 43)
I've tried the solution posted under here
USB Fix - Win7 x64 - USB Device not Recognized
and I've used both drivers from Samsung Kies and here
[Drivers] MS Windows x86 and x64 USB Drivers for Samsung Galaxy S
(Sorry can't post links apparently)
When I try to update the driver manually for the unknown device it says that it has already selected the best driver for the device. So i don't know if it really updated it.
Any Suggestions would be really helpful. Thanks!
espy1988 said:
So I was hoping some of you guys could help me out.
Recently my Vibrant started to give me trouble with my computer. But it's only my vibrant with my computer. I can connect to any other computer no problem. Any other device is easily recognized by my computer except the vibrant.
It started after using PDANET's tethering app. I was at one point tethering all the time putting my phone in usb debugging mode and running pdanet on my computer. Then I also started using the bluetooth tethering. Once I finally got internet at my new place i stopped using the tethering option. But then I realized when i tried to get files off my phone my computer wouldnt recognized my phone anymore.
The error I get is
USB Device Not Recognized.
One of the usb devices on this computer has malfunctioned and windows does not recognized it.
Usb Root Hub Unknown device.
Try Reconnecting the device if windows still does not recognized it replace the device.
In the device manager the properties of the "unknown device" says
Status: Windows has stopped this device because it has reported problems. (Code 43)
I've tried the solution posted under here
USB Fix - Win7 x64 - USB Device not Recognized
and I've used both drivers from Samsung Kies and here
[Drivers] MS Windows x86 and x64 USB Drivers for Samsung Galaxy S
(Sorry can't post links apparently)
When I try to update the driver manually for the unknown device it says that it has already selected the best driver for the device. So i don't know if it really updated it.
Any Suggestions would be really helpful. Thanks!
Click to expand...
Click to collapse
I have the same problem on my PC. I would plug in the phone and my mouse would stop working. No tethering app installed or anything.
Anyway, I just tried the ports on the back of the PC and those worked. Try a port closer to the MB
I've tried all my ports. It's still not recognized.
Check the cable and power source. Be sure cable is with good quality. I hade the same issue. I fixed it with original HTC cable and back panel USB from my deskop computer. Front USB of desktop computers often are not enough to power that consumption.
After updating to Froyo it started working again. Thanks though. I still have no clue what caused it.
Bumping to confirm, I found this thread after getting the same error. I had tried several of the USB ports on my computer but after reading this tried the 2 I hadn't yet, they both worked. Not sure why only those work now, but they do work.
Hope this helps someone.
I have a bricked galaxy s which doesn't do anything. Windows 7 reconizes an unknown device and it's not possible to install the samsung driver. Windows says that it allready has the right driver.
I can't seems to reincarnate my galaxy s. Only this small sign of live in windows 7.
It happened when I was flashing 2.3.5 and the connection went down just seconds after the start of flashing so I guess the bootloaders are corrupt.
Anyone any idea how to solve this one?
Vibrant UnBrickable Mod
The same thing is happening to my Vibrant. Tried Rooting and installing various ROMs and it is still "Not Recognized". Tried all ports on all PCs (4) and Laptops (1) and non of them work. espy1988, how did you upgrade to Froyo 2.2 if you could not connect to PC and Kies? This used to work without an issue.
Thanks
Tombias said:
I have a bricked galaxy s which doesn't do anything. Windows 7 reconizes an unknown device and it's not possible to install the samsung driver. Windows says that it allready has the right driver.
I can't seems to reincarnate my galaxy s. Only this small sign of live in windows 7.
It happened when I was flashing 2.3.5 and the connection went down just seconds after the start of flashing so I guess the bootloaders are corrupt.
Anyone any idea how to solve this one?
Click to expand...
Click to collapse
Like said above u might need to be debricked.
seems like ur phone is hard bricked.
---------- Post added at 04:33 AM ---------- Previous post was at 04:26 AM ----------
have u tried Odin back to stock using Odin or hemidal ?
I have the same problem now. I have had my Vibrant for over a year never with an issue. I have Odined it back to JFD dozens of times but now it will not recognize the usb device.
I have GB bootloaders, but never a problem before. When changing Roms I usually Odin back to JFD first and start clean.
My problem started with the phone getting stuck in landscape mode. I was running a 2.3.4 GB rom Sensation. I reflashed a few times but whenever a restored anything from Titanium it would revert back to landscape only. I decided to go back to a 2.2 rom and plugged in the phone to Odin and it was not recognized, also not as a mass storage device, no go. I used Samba to copy a 2.2 rom, Trigger, to the phone and flashed from there. The phone is good now except the computer still won't recognize it. I can use Samba to access the SDCard but I hate not being able to use Odin if things go south. Tried all usb ports and a new cable, no go. Really wierd.
Looking for suggestions......
If you're still under warranty claim it & send it.
Had same problem. There is no fix short of replacing USB port.
I found my problem. It was dirty/corroded usb port. I carefully cleaned it out (took a few times) and it's all functioning again. I also cleaned the contacts on my original usb cord and it is working again also.
I'm just now having this problem for the first time. I've tried all USB ports and cleaning the port on the phone with no luck so far. Can someone point me to the unbrickable mod mentioned early in this thread?
jnusz said:
I'm just now having this problem for the first time. I've tried all USB ports and cleaning the port on the phone with no luck so far. Can someone point me to the unbrickable mod mentioned early in this thread?
Click to expand...
Click to collapse
Have you tried installing the installing/re-installing the Samsung drivers (LINK), using another USB cable, or even another computer? I just want to make sure you've tried it all before attempting to do a hardware mod.
Anyhow, you can find a link to the unbrickable mod and other hardware mods in the "Official XDA Vibrant Bible Thread", under the "MODS/SCRIPTS" section (LINK).
Mine is the cable btw. My wife has a GSII and I was able to use her cable.

[Q] How to flash stock ROM using ROM manager?

My computer wont recognize my phone at all, it just says 'USB device not recognized'. I have tried reinstalling drivers, using different USB cables, USB debugging mode, mass storage mode and mounting the SD card ALL of that.. so I know it's something wrong with the phone rather than my drivers or me being stupid. I have searched to try and find a fix for this but nothing is forthcoming.. I think it may be a faulty USB port on my phone.
Anyway, this means I can't use ODIN to flash my phone back to stock so what I want to do is flash my phone back to stock T959UVJI6 using a zip file and ROM manager if possible.. but I have looked everywhere and can't find a zip for stock ROM... Every method I've seen says to use ODIN which is impossible for me.
Any help on this or a link to where I can download a stock ROM zip would be appreciated.
ok I managed to flash Bionix Fusion 1.2 which is ok, seems to be running fine. I still can't connect to my computer though I guess I will have to get the USB port checked out.
Sounds like an issue on the PC side if it recognized the phone was connected. You sure you got the drivers... are you using the cable that came with the phone? Sounds crazy, but i had issues using my nexus one cable one time.
I tried with the cable that came with my phone and also my husband's micro usb cable.. I downloaded the drivers from the link given in the XDA forums, tried to restore drivers from KIES, downloaded drivers from other spots too.. none of them work. I also tried to connect to my husband's PC and it said 'USB device not recognized' as well. I noticed a couple of other posts where this has happened to people and there seems to be no software/using different cable solution.. I am guessing I'll just have to get the phone looked at as I'm not savvy enough to go about it myself! Thanks for the advice though
Here is the stock JK6
http://forum.xda-developers.com/showthread.php?t=857974
Thank you, I will flash this one when I get home

[Q] usb device not recognized. help!

When I plug my phone into my computer, it is no longer recognized by windows. It used to... now it doesnt...
I have googled this
I have checked the forums
I have NOT found a solution that works
I have tried booting my phone while it's plugged in.
I have tried reinstalling kies.
The phone comes up as "uknown device" in the usb section of device manager, when i specify the 64bit drivers(I'm running win7 pro 64) it says drivers are up to date! and then proceeds not to work.
I have also tried setting my phone into usb debugging mode.
I have tried all my computers usb ports.
If anyone knows how to help me I'd really appreciate it.... and if I've blindly missed something feel free to call me a moron so long as you successfully help me
chaosthebomb said:
When I plug my phone into my computer, it is no longer recognized by windows. It used to... now it doesnt...
I have googled this
I have checked the forums
I have NOT found a solution that works
I have tried booting my phone while it's plugged in.
I have tried reinstalling kies.
The phone comes up as "uknown device" in the usb section of device manager, when i specify the 64bit drivers(I'm running win7 pro 64) it says drivers are up to date! and then proceeds not to work.
I have also tried setting my phone into usb debugging mode.
I have tried all my computers usb ports.
If anyone knows how to help me I'd really appreciate it.... and if I've blindly missed something feel free to call me a moron so long as you successfully help me
Click to expand...
Click to collapse
Rom? etc.
Sent from my GT-I9000 using XDA Premium App
Stock with a voodoo kernel, do I need to turn voodoo off?
chaosthebomb said:
Stock with a voodoo kernel, do I need to turn voodoo off?
Click to expand...
Click to collapse
I have noticed that some ROM's will enable debugging, I personally run a MAC. But you may want to check those settings to see if its enabled/disabled. But if your charging on it you should be good. Have you tried to odin back to stock and seeing if that helps?
Other thing: do you have the samsung drivers installed on your PC? even if you don't you should still see the external storage just not the internal.
lovemysgs said:
I have noticed that some ROM's will enable debugging, I personally run a MAC. But you may want to check those settings to see if its enabled/disabled. But if your charging on it you should be good. Have you tried to odin back to stock and seeing if that helps?
Other thing: do you have the samsung drivers installed on your PC? even if you don't you should still see the external storage just not the internal.
Click to expand...
Click to collapse
Reinstalk drivers as he said
Sent from my GT-I9000 using XDA Premium App
I should have listed this before... I reinstalled the drivers first before reinstalling kies or checking out device manager
chaosthebomb said:
I should have listed this before... I reinstalled the drivers first before reinstalling kies or checking out device manager
Click to expand...
Click to collapse
Any other devices recognize it?
Sent from my GT-I9000 using XDA Premium App
What rom are you using? If you are running one of the test CM7 builds you have to download the Google drivers from the Android SDK.
Does your phone show up when you mount it as external memory? Did you install the drivers and kies as an administrator?
exact same scenario!
I am having the exact same issues as the OP! Except that i have the unbranded gt-i9000. My galaxy s is completely stock, no custom firmware or launchers. Heck, after the last factory reset, not even any apps!
I have tried every suggestion on every search i could do. I have 4 computers with xp sp3, win7 sp1, ubuntu 10.04.1, and mac os x 10.5.8. Nothing is working on any of them. I've even tried different usb cables, just to rule that out.
Could it be a samsung hardware issue?

I have tried everything please help

Computer wont recognize my device anymore. I have downloaded every set of drivers from this forum, from the samsung website, I even tried downloading kies but it wouldnt recognize it either.
It worked before I did the following and now it doesnt.
First I rooted my phone with route 66 everything was going fine until I made the huge mistake (not knowing) and downloaded rom manager so that I could do a nandroid backup. Well as we all know now, you cant do that. So I got the deadly uellow verizon triangle saying unauthorized software bring it to the store. So I went through the xda forums and found the one that told me how to fix it. I used odin with the alternate restore and got it back up and running. So I wanted to go back and use adams one click unlock and root. I got everything downloaded and ready. I put my phone in developer mode and plugged it in. It starts trying to find the drivers and then it flips from debugger mode to media mode everytime. It starts seeing it as everything but a samsung phone. It says found camera and even cd rom but not the phone. I have read through everything and tried everything I could think of but I am at a loss. PLEASE HELP
Sent from my SCH-I605 using xda app-developers app
brandi1693 said:
Computer wont recognize my device anymore. I have downloaded every set of drivers from this forum, from the samsung website, I even tried downloading kies but it wouldnt recognize it either.
It worked before I did the following and now it doesnt.
First I rooted my phone with route 66 everything was going fine until I made the huge mistake (not knowing) and downloaded rom manager so that I could do a nandroid backup. Well as we all know now, you cant do that. So I got the deadly uellow verizon triangle saying unauthorized software bring it to the store. So I went through the xda forums and found the one that told me how to fix it. I used odin with the alternate restore and got it back up and running. So I wanted to go back and use adams one click unlock and root. I got everything downloaded and ready. I put my phone in developer mode and plugged it in. It starts trying to find the drivers and then it flips from debugger mode to media mode everytime. It starts seeing it as everything but a samsung phone. It says found camera and even cd rom but not the phone. I have read through everything and tried everything I could think of but I am at a loss. PLEASE HELP
Sent from my SCH-I605 using xda app-developers app
Click to expand...
Click to collapse
Turn off your phone, connect to your computer with the USB cord and turn back on your phone. It should start the drivers and connect to your device.
smalk said:
Turn off your phone, connect to your computer with the USB cord and turn back on your phone. It should start the drivers and connect to your device.
Click to expand...
Click to collapse
I tried that, it is still not seeing it like it is supposed to. I was able to get Odin to recognize it so that I could flash the rooted stock again but I can't get Casual Jailbreak to work. I'm not sure if it is because the drivers or not but I am guessing it has something to do with it. Every time I plug it in, it starts searching for drivers and then always switches from usb debugging mode to media mode. The checkmark is still in usb debugging but I don't think it actually is. You can watch it go from device as installer to media.
Are you using the driver install app (zadig i think its called) to install the heimdall driver on top of "gadget serial". Looking at your other post it seems like a driver issue. One thing ive noticed is, if odin can see the device then heimdalll cant and vice/versa. So if odin can see it you have the wrong driver, if you are infact installing the heimdall driver my second question is, does windows xp x64 use driver sig enforcement like win7 x64 does? if so you probably need to disable it. Just throwing my $0.02 out there.
Are you using the official USB cable? I had an aftermarket cable that had worked for months, then decided to quit working. It works with other devices just not the Note2. Changed to my original cable and all is well.
nunyazz said:
Are you using the official USB cable?
Click to expand...
Click to collapse
Also try plugging it in to the PC and not through a hub/keyboard/monitor port
Sent from my SCH-I605 using xda app-developers app
If it sees the device in the dumb verizon cd mode thing and ptp than it can see adb. Its not the cable. however i would try setting the usb debugging first than set it to camera mode. adb should still be able to pick it up
Thank you everyone for your help, I finally got the drivers working and the bootloader unlocked
brandi1693 said:
Thank you everyone for your help, I finally got the drivers working and the bootloader unlocked
Click to expand...
Click to collapse
How? Fixing to unlock my spanking new note also. I had the drivers issues late last night. When installing drivers through the Z app I never could get it to install Samsung usb drivers nor did I see serial gadget option. Running Windows Vista 64bit. I know I have Java.
Sent from my SCH-I605 using xda premium

[Q] Stuck in boot loop

Hello, usually don't have much issues with this sort of thing as I have decent experience with this.
I'm stuck on this particular issue though as my phone is in a constant boot loop. I was planning on just reflashing a ROM on to the device, but in the bootloader or recovery my pc will not detect the device at all so I am unable to run fastboot or adb commands on it. I have tried this on 3 pc's(2 Windows 8.1 and 1 Windows 7).
Any ideas or help would be greatly appreciated.
Windows 8 & 8.1 will not work. I used the DNA toolkit on a Windows XP laptop to get my phone out of the bootloop (when you were using the Windows 7 computer, were you using the USB 2.0 port? It's been mentioned in many posts that USB 3.0 will not work). Don't use the drivers from HTC SYNC, the proper drivers are here on XDA (just Google it).
Sent from my HTC Droid DNA running KICKDROID Sense 6/4.4.2 ROM via Tapatalk
Yes it was on USB 2.0. Drivers won't do me any good if device manager won't even detect the device is plugged in to begin with. That is the issue is I have no way to flash a new ROM because I can't even get device manager to pickup that the device is plugged in on any computer.
Until I switched to a Windows XP computer, my phone wasn't recognized either, no matter how often I updated the drivers.
Sent from my HTC Droid DNA running KICKDROID Sense 6/4.4.2 ROM via Tapatalk
You can't update the drivers for a device though until it detects there is a device there. There shouldn't be any issue with Windows 7 being able to detect a DNA.
I never had an issue with this until now and now I'm just stuck in either a boot loop or going into recovery.
I would be willing to to try XP for the fun of it when I get an opportunity, but don't feel it is necessary.
If I do a factory reset from CWM Recovery I can get into Cyanogenmod and go through the initial setup steps. After that it sits at a black screen, but I can drag the notification drawer down and get into the settings. Only have a minute or two before it reboots back into a boot loop.
Surely there has to be some way to fix this...
I managed to get it to stay on. Here is what I did to transfer a new ROM over. Since all I could access on the phone was the settings I changed a locksceen slider to the Play Store and installed AirDroid. I then transferred the file over through AirDroid.
I am about to flash it now. If this installs fine and clears up the boot loop issue then I guess that issue is fixed, but that still doesn't solve the problem with my device not connecting to the PC through USB.
Okay I managed to finally get a new ROM to flash over after some issues with the ROM zip itself. It flashed and said updating apps 77/77 and restarted and its been sitting at the boot logo for 10 minutes.
Still never got it to detect USB connection on PC either.
I don't have a single clue what to do now. Am I just out of luck at this point?
Okay I know I have flooded this with messages, but I have Cyanogenmod 10.2.1 on there and it seems to be working fine. I can reboot and it goes back into Android without a boot loop from what I can tell.
USB still does not work even within Android though. Is there an issue with the hardware itself? It charges fine.
justinds89 said:
Okay I know I have flooded this with messages, but I have Cyanogenmod 10.2.1 on there and it seems to be working fine. I can reboot and it goes back into Android without a boot loop from what I can tell.
USB still does not work even within Android though. Is there an issue with the hardware itself? It charges fine.
Click to expand...
Click to collapse
Is MTP checked or USB debugging enabled? If not you need to check them both
Sent from my HTC6435LVW using XDA Premium HD app
Yes both of them are checked.
Have you tried downloading pdanet that will reinstall adb asking with other drivers
Sent from my HTC6600LVW using XDA Premium 4 mobile app
Yes I have. Still should allow normal file transfer without it and also at the very least device manager should detect it. I think I am just out of luck on this. At least it can still charge.
On the Win 7 machine, are you sure that USB port is good? Sorry no one asked that simple question.
Also, have you tried cleaning your micro USB port?
Sent from my HTC6435LVW using xda app-developers app
Yes, like I said other devices work fine on PC and also have tried it on 4 different computers. I also cleaned the port.
NP, appreciate the response.

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