Hi,
i have a strange problem with my S2. i can get a connection with kies and myphoneexplorer. all works fine. but when i put my phone into download mode (usb debugging on, all tasks of kies killed) it says "unknown device". i tried several reinstallations of kies and drivers. i changed my usb cable. i used two other computers. nothing worked.
there is one thing, when i connect with usb, it says it is possible to get a faster connection (somehow i cannot use usb 2.0???). i transfer data with 700kb/s (i think this is to slow?) but my computer works fine with other usb tools (extern hdd works with 25mb/s). maybe the usb port of my phone is broken? but it charges and as i said i can get a connection in normal mode and transfer data. i
so help me out here
There's some help on this thread:
http://forum.xda-developers.com/showthread.php?t=1600497
Searching helps!
well, i am not that stupid, of course i found some threads with a similiar problem. but the solutions (clean usb port or connect through kies first etc.) ain't helping for me ...
Replace USB board/port. Search for KeithRoss39's guide in General section; has all the info you need, quick/easy/cheap (<AUD$10 for me) to do yourself.
i am gonna try that
but normal mode is working and charging too, so i guess it won't be the usb port.
but to rule it out, i will do it :good:
You'll often see some things will work/some won't when the board is on the fritz, they don't always die completely.
thanks,
that worked i could finally install the needed drivers in download mode :cyclops:
No worries. Glad you got it sorted
Related
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.
Ok so I was previously running Hydr0g3n ICS ROM an older version and I had mount problems where only internal sd would mount, but it mounted at least. Occasionally I'd have to reboot my laptop because of no detection but that'd fix it.
Fast forward to a couple of days ago and I installed Resurrection Remix 04/05 but got really weird issues when connecting to my laptop e.g. installing device drivers, failing, usb sounds coming and going, device being recognised then disappearing again. Eventually no response. I reflashed, fully wiped, everything, experimented with drivers. Then plugged it into a mates (newer) laptop and it worked?
Back to mine, didn't work, installed Hydr0g3n ICS 05/05 which ran a lot smoother but still same issues, I repeated the steps above and even after device drivers actually successfully installed, it'd work and then next day no response or detection when plugging in USB. Since then I've gone through the drivers route again, trying all sorts of windows fixes, it still works fine when plugged into a newer laptop.
So after all my research etc I've realised that it seems to be some sort of power issue with the phone/ROM, perhaps the newer laptops have more USB hubs which aren't shared between many devices and so it works but mine is very intermittent if not non-existent. Oh, all other USB devices work, flash drives, external hard drives, I have never had any issues with any USB devices. Just this.
Also, I've tried toggling USB Debugging, and MTP UMS PTP, nothing. Read something about fast charge but have no notification that it's enabled on boot and no option to disable it in Kernel tweaks since I'm not on a supported kernel.
Hydr0g3n ICS ROM 2012 05 05 SGS2
3.0.29 Siyah v3.1.2
Any help would be much appreciated.
UPDATE:
I ordered a powered USB hub off eBay, it arrived today and did not work with the phone.
UPDATE 2:
So I recently stole my dads TouchPad and installed AOKP on it, my laptop detected it absolutely fine in MTP mode.
It uses the same cable so I figured, why not?
I plugged it in and hey presto, it popped up -_-
It's so strange the stock cable works on everyone elses laptops but mine, I don't know if it'll still work tomorrow though, I suppose if I don't re-comment then it still is working.
Bump?
FatPhysicsBoy said:
Ok so I was previously running Hydr0g3n ICS ROM an older version and I had mount problems where only internal sd would mount, but it mounted at least. Occasionally I'd have to reboot my laptop because of no detection but that'd fix it.
Fast forward to a couple of days ago and I installed Resurrection Remix 04/05 but got really weird issues when connecting to my laptop e.g. installing device drivers, failing, usb sounds coming and going, device being recognised then disappearing again. Eventually no response. I reflashed, fully wiped, everything, experimented with drivers. Then plugged it into a mates (newer) laptop and it worked?
Back to mine, didn't work, installed Hydr0g3n ICS 05/05 which ran a lot smoother but still same issues, I repeated the steps above and even after device drivers actually successfully installed, it'd work and then next day no response or detection when plugging in USB. Since then I've gone through the drivers route again, trying all sorts of windows fixes, it still works fine when plugged into a newer laptop.
So after all my research etc I've realised that it seems to be some sort of power issue with the phone/ROM, perhaps the newer laptops have more USB hubs which aren't shared between many devices and so it works but mine is very intermittent if not non-existent. Oh, all other USB devices work, flash drives, external hard drives, I have never had any issues with any USB devices. Just this.
Also, I've tried toggling USB Debugging, and MTP UMS PTP, nothing. Read something about fast charge but have no notification that it's enabled on boot and no option to disable it in Kernel tweaks since I'm not on a supported kernel.
Hydr0g3n ICS ROM 2012 05 05 SGS2
3.0.29 Siyah v3.1.2
Any help would be much appreciated.
Click to expand...
Click to collapse
just try 2 flash the latest siyah kernel and check
On Windows 7, after several USB connect-disconnect, I would experience Windows not responding to connection any more on that very USB port.
I usually have adb server running in background, so "Safely remove" feature is blocked, and I would simply remove after file operations are over.
I made a .bat file on desktop, that simply performs "adb kill-server", so that I can safely remove it, and have not experienced this problem since then.
Sun90 said:
just try 2 flash the latest siyah kernel and check
Click to expand...
Click to collapse
I've tried all of the kernels, Siyah, Thoravukk, NEAK, and multiple versions of Siyah too, including the latest one.
Also my powered USB hub arrived today and it did not remedy the issue.
mirbeksm said:
On Windows 7, after several USB connect-disconnect, I would experience Windows not responding to connection any more on that very USB port.
I usually have adb server running in background, so "Safely remove" feature is blocked, and I would simply remove after file operations are over.
I made a .bat file on desktop, that simply performs "adb kill-server", so that I can safely remove it, and have not experienced this problem since then.
Click to expand...
Click to collapse
Could you perhaps explain this a little more to me?
I plug it in and literally it charges but absolutely nothing else happens. Anything else works in the same port, just not the phone for some reason.
USB problems basics .
USB port should be mainboard port .
Usb Port on phone multiple USB problem posts say clean port .
Kies or Samsung USB drivers should be installed with Kies not running .
USB cable try Samsung cable or another .
Try USB debugging off and or on .
jje
JJEgan said:
USB problems basics .
USB port should be mainboard port .
Usb Port on phone multiple USB problem posts say clean port .
Kies or Samsung USB drivers should be installed with Kies not running .
USB cable try Samsung cable or another .
Try USB debugging off and or on .
jje
Click to expand...
Click to collapse
1) Yes they are all mainboard ports - No response.
2) Have cleaned USB ports on mainboard many times. This seems irrelevant too since all other devices are recognized.
3) Have also experimented with combinations of this. (All combinations) Nothing.
4) I have only tried the Samsung cable since it's all I have, and it works on all of my friends laptops.
Also, I plug it in, and it draws power (aka it charges) but nothing else. Not even a windows 'bong'. Even with the powered USB hub, it still only charges.
However the minute I plug it into a friends laptop it seems to work just fine.
@ op
goto device manager and uninstall the android devices you see there with the option "delete device drivers completely" and make a reboot.
now install the usb drivers and plug in the device.
FatPhysicsBoy said:
1) Yes they are all mainboard ports - No response.
2) Have cleaned USB ports on mainboard many times. This seems irrelevant too since all other devices are recognized.
3) Have also experimented with combinations of this. (All combinations) Nothing.
4) I have only tried the Samsung cable since it's all I have, and it works on all of my friends laptops.
Also, I plug it in, and it draws power (aka it charges) but nothing else. Not even a windows 'bong'. Even with the powered USB hub, it still only charges.
However the minute I plug it into a friends laptop it seems to work just fine.
Click to expand...
Click to collapse
This last point tells me there are possibly some registry settings on your computer that are keeping the drivers from loading properly.
I've never had to do this, so I don't know what to look for EXACTLY, but you may need to get a registry cleaner and try to eradicate all traces of Kies and Samsung drivers from your computer, then re-install either Kies (to get the drivers) or the stand-alone USB drivers.
I remember reading another post some time back about some other guy who actually totally re-installed Windows... which is a bit like using explosives to kill a mosquito, if you ask me.
However, try bala_gamer's suggestion first. That may be all that is needed.
FatPhysicsBoy said:
1)
2) Have cleaned USB ports on mainboard many times. This seems irrelevant too since all other devices are recognized.
NO its the phone USB port .
Agree that if all fails try reinstall of Kies and drivers after a delete .
Delete registry kies .
[HKEY_CURRENT_USER\Software\Samsung]
[HKEY_LOCAL_MACHINE\SOFTWARE\SAMSUNG]
jje
Click to expand...
Click to collapse
bala_gamer said:
@ op
goto device manager and uninstall the android devices you see there with the option "delete device drivers completely" and make a reboot.
now install the usb drivers and plug in the device.
Click to expand...
Click to collapse
So believe it or not I didn't actually go into detail in the op! But a few more things to note are that the device does not show up in device manager at all. Even with shadow device detection enabled. I have used all manner of driver software available to clear out all old usb drivers/any drivers which may be conflicting etc. I have also removed and reinstalled the usb host controllers and root hubs many times
ctomgee said:
This last point tells me there are possibly some registry settings on your computer that are keeping the drivers from loading properly.
I've never had to do this, so I don't know what to look for EXACTLY, but you may need to get a registry cleaner and try to eradicate all traces of Kies and Samsung drivers from your computer, then re-install either Kies (to get the drivers) or the stand-alone USB drivers.
I remember reading another post some time back about some other guy who actually totally re-installed Windows... which is a bit like using explosives to kill a mosquito, if you ask me.
However, try bala_gamer's suggestion first. That may be all that is needed.
Click to expand...
Click to collapse
Yes, indeed I also believed it to be some sort of registry problem, I have also used tune up utlities, registry mechanic and ccleaner (I think thats all there was!) and run registry scans/cleans/fixes/defrags. To no avail. I was actually considering reinstalling windows or something.
JJEgan said:
FatPhysicsBoy said:
1)
2) Have cleaned USB ports on mainboard many times. This seems irrelevant too since all other devices are recognized.
NO its the phone USB port .
Agree that if all fails try reinstall of Kies and drivers after a delete .
Delete registry kies .
[HKEY_CURRENT_USER\Software\Samsung]
[HKEY_LOCAL_MACHINE\SOFTWARE\SAMSUNG]
jje
Click to expand...
Click to collapse
Yes, my bad, I have also cleaned that too. Also I didn't think it could be that since it seems to work on everyone elses laptop.
Just deleted those registry entries, rebooted. Nothing. Deleted a few more from old software which seemed to still be floating around, rebooted. Nothing.
:'(
Click to expand...
Click to collapse
I had the same problem with AOKP ROMs
I had the same problem with AOKP ROMs and then I installed MIUI and it worked again, I guess you can try any other ROM (not AOKP) and check if it solves your problem.
So I recently stole my dads TouchPad and installed AOKP on it, my laptop detected it absolutely fine in MTP mode.
It uses the same cable so I figured, why not?
I plugged it in and hey presto, it popped up -_-
It's so strange the stock cable works on everyone elses laptops but mine, I don't know if it'll still work tomorrow though, I suppose if I don't re-comment then it still is working.
I just received a replacement S2 from AT&T, my old S2's USB port went out. I am wanting to root through Odin and get CM9 back on but I can not get my phone to connect to my PC. I have tried on my main PC Windows 7 64 bit and my laptop Windows XP. The phone is running 2.3.6 KK6. When I connect it I see MTP Initialization followed by MTP Connected on my phone, but nothing on my computer. When connecting in Mass storage mode by either enabling usb debugging or through settings -> wirelss -> USB Utilities the phone will just beep when connecting. I've tried the following to fix:
- Installed Kies, Reinstalled Kies
- Installed just the Samsung USB driver
- *#7284# on my phone and made sure PDA was selected under USB. Even switched to Modem then back to PDA.
- Tried removing my MicroSD card
- Multiple reboots
- Tried 2 different cables
- Tried different USB ports
Any other ideas on how to fix?
Try this dude.
http://forum.xda-developers.com/showthread.php?t=
I am having same problem. Have nit found fix yet if link is bad, try wifi transfer from the market
Sent from my SGH-I777 using Tapatalk 2
ksbarnz said:
Any other ideas on how to fix?
Click to expand...
Click to collapse
First thing I would try is to completely uninstall the usb drivers in Windows, and then reinstall the usb drivers from this thread.
Well...I fixed my issue and want to headbutt a kitten as well. Turned out that I wasn't using a MicroUSB cable that was able to do Data as well as charge. Guess all MicroUSB cables are not created equally. I had 3 that I tried and they would just charge the device. I talked to Samsung and they asked if I was using my "Official" Samsung cable. I thought I was, turns out I wasn't. I went to Walmart and got a cable certified for Data and all is good in the world. Connected to my PC instantly.
So if you are having issues, check to make sure you are using your Samsung cable or one that is certified for data.
I have a rooted stock ICS SGS2. Since a couple of weeks my USB connection on my laptop isn't working anymore. When I connect the SGS2 to USB, nothing happens on the phone and nothing happens on the laptop.
No "unknown device", no "USB connection" beep, no USB connection on the phone.
I tried a differtent cable, didnt work. I tried on another PC, didnt work.
I change developer USB-settings (USB error check) but didnt work.
I searched a lot, but couldn't find any solution. Can anyone please help me?
P.S. Running on Windows 7 64x Professional
edwindejong said:
I have a rooted stock ICS SGS2. Since a couple of weeks my USB connection on my laptop isn't working anymore. When I connect the SGS2 to USB, nothing happens on the phone and nothing happens on the laptop.
No "unknown device", no "USB connection" beep, no USB connection on the phone.
I tried a differtent cable, didnt work. I tried on another PC, didnt work.
I change developer USB-settings (USB error check) but didnt work.
I searched a lot, but couldn't find any solution. Can anyone please help me?
P.S. Running on Windows 7 64x Professional
Click to expand...
Click to collapse
does your phone charge when conneted to the computer, you do not need drivers for that. If it does not try cleaning the usb port on your phone, there maybe dust or something stopping the cable from making ful contact.
Hi,
I had a similar problem ,
1-first try to check in parmater section -> stockage if usb debugging is on
2-Second try to reinstall kies for drivers
3-> change cable or clean your usb port with a toothbruch (slightely hhhh)
4-> if nothing of these solutions works and you get an unknow device also with odin that means youre usb port is broken, it simple to change and dont cost a lot (170 MAD for me ).
There are other threads that spoke about the same problem.Hope it works
My phone charges when connected. I also tried re-installing Kies and cleaned the phone port. Nothing helped
As mentioned before, i tried lots of USB ports, also other PC's and other cables. Still not working.
Any clue?
If you've tried 'everything', then it's a hardware issue. Unroot it, reset the flash counter, send it in for warranty service.
Ok, so I found a few older threads on this, but no tips in them seem to work in my case. I can't seem to get my S4 to see the PC/USB connection and prompt to select Media Device or the like. The USB icon never even appears in the notification bar. The PC recognizes connection (USB tone sounds) and shows device ready to use, but phone never gives the option. Doesn't seem to matter if USB Debugging is checked or not, or anything else that I can find so far. Here's the things I can generally eliminate:
2 different USB cables worked on wife's S4 on two different PCs. Neither cable or PC worked with my S4
Tried reinstalling Samsung USB drivers just to be sure
Cold booted phone
Tried unchecking and re-checking USB debugging (also tried with it unchecked)
So when we take in working fine on wife's S4, I'd generally guess that we can eliminate cable and PC from the potential problem list. Phone is currently on stock rom, but rooted. Outside of that and freezing VZ Support, Knox, and VZ Tones, no other modifications to the OS. At this point, I'm pretty stumped. Any suggestions on other steps to try?
The problem is your USB settings in the hidden dialers. Look for tutorials on how to enable them, and once found, type *#0808#, and a list of usb otions will come up. Pick any with MTP and they'll work again.
Worked perfect. Thanks muchly!
aidankiller4 said:
The problem is your USB settings in the hidden dialers. Look for tutorials on how to enable them, and once found, type *#0808#, and a list of usb otions will come up. Pick any with MTP and they'll work again.
Click to expand...
Click to collapse
Not to threadjack, but...
On a related issue, win update tried to update my samsung ADP, etc drivers and failed. Ever since, I cannot connect to the PC. The PC doesn't even notice that the phone is connected. I tried the above fix to no avail (it is set to MTP) I uninstalled and reinstalled kies, tried troubleshooting the usb connection, ect...
Please help.
Im_Gumby said:
On a related issue, win update tried to update my samsung ADP, etc drivers and failed. Ever since, I cannot connect to the PC. The PC doesn't even notice that the phone is connected. I tried the above fix to no avail (it is set to MTP) I uninstalled and reinstalled kies, tried troubleshooting the usb connection, ect...
Please help.
Click to expand...
Click to collapse
Try installing/reinstalling Kies, it comes bundled with all the samsung drivers you'll need
Tried that. Twice. To no avail.
But it is no longer a problem. I installed eclipse rom and it now works again.
Who knows what went wrong...
And now it's not working again. Reinstalled (dirty) the ROM without any change. Thoughts?