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.
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.
Hi.
Firstly, sorry about my English.
I am using HTC HD2 about 6 months. I was able to connect my phone with my pc by USB. But nowadays, i can't do it.
My PC is using Windows 7 64-bit.
Now, my problem is:
When i connect USB cable, there is no notification or sound in my PC. (like "a device connected to PC" or "a new hardware found" etc.)
Phone can be charged via USB connection with PC but I can't use activesync.
Otherwise, when i connect PC and phone by Bluetooth, i can use WMDC.
I controlled "USB to PC" module in my phone. I tried "enable faster data synchronization" checked and unchecked. And i checked "Ask me first..." But there is no effect
And also, i tried it in another PC (which is Vista) and another USB Cable.
And when i shut down the device, and i open it while pressing volume down button, bootloader opened but in bootloader screen there wasn't a text like "USB". There is a text "Serial".
I make hard reset but it doesn't effect too.
What do you think about my problem? May it be about USB input of my phone?
I used to make HSPL in my phone and he has custom rom now.
If the problem is a hardware problem, is it out of warranty? :S
Please help me.
Thanks.
buraakk said:
Hi.
Firstly, sorry about my English.
I am using HTC HD2 about 6 months. I was able to connect my phone with my pc by USB. But nowadays, i can't do it.
My PC is using Windows 7 64-bit.
Now, my problem is:
When i connect USB cable, there is no notification or sound in my PC. (like "a device connected to PC" or "a new hardware found" etc.)
Phone can be charged via USB connection with PC but I can't use activesync.
Otherwise, when i connect PC and phone by Bluetooth, i can use WMDC.
I controlled "USB to PC" module in my phone. I tried "enable faster data synchronization" checked and unchecked. And i checked "Ask me first..." But there is no effect
And also, i tried it in another PC (which is Vista) and another USB Cable.
And when i shut down the device, and i open it while pressing volume down button, bootloader opened but in bootloader screen there wasn't a text like "USB". There is a text "Serial".
I make hard reset but it doesn't effect too.
What do you think about my problem? May it be about USB input of my phone?
I used to make HSPL in my phone and he has custom rom now.
If the problem is a hardware problem, is it out of warranty? :S
Please help me.
Thanks.
Click to expand...
Click to collapse
It maybe because you are using Win 7 64 bit. Try installing 32 bit as well and see if it cures your problem.
Also see http://support.microsoft.com/kb/946765
Russ
Hi.
Thank you for your attention.
Unfortunately, i tried it, too. In another PC, whose OS is Vista 32-bit. There is no sound or notification at PC
Actually, i've searched so many topics in this forum.
And i am almost sure that my problem is a hardware problem.
Because i tried so many things in settings of PC and Phone but there is no change.
I just wanna ask you, guys, if i send my phone to service, is there any problem about my phone's HSPL and Custom ROM situtation??
So the problem is hardware problem and most probably my USP Port is damaged.
Do you think they tell me that "your phone is out of warranty bec. of HSPL!" ?
Thanks.
faulty cable or faulty usb port. search out the "stuck in car kit mode" thread and compare the symptoms.
Well, the day before it occurred to me that I'd like to install a custom ROM, therefore I went on to plug my phone into my PC and for my surprise, the phone didn't pop that MTP warning and the PC did not recognize it.
So I went around and changed USB ports, cables and PCs, same thing.
Decided to try Mass Storage mode, when I press the START button and put in the cable it goes back into the main start screen.
So I went on and tried that *#7284# trick people used since apparently 4.0.3 bugged some crap stuff in the phone, no success either.
Strangely enough I can connect the "pendrive dongle" and it will map pendrives.
Well, I don't have my phone rooted or with SU so that means CWM from app store won't be able to install the recovery module, and I can't install... you get the picture.
Nor ODIN nor HEIMDALL will recognize my phone in recovery mode, wich suggests that the data lanes on my phone went somewhat dead.
Finally, any cable I plug in the phone says it's charging my device, wich leads me to belive that the usb port is dead.
Anyone had this issue?
Anyone can confirm me I'll have to take it to Sammy's assistance?
Sure looks like the USB is dead/dying.
Sent from my digital submersible hovercraft.
So I got one more question, can I root and/or install CWM so I do not stay dependent of the USB to update it or I do need to plug in the USB to install CWM through ODIN?
Several problems
It can be several reasons
1.the usb is dead buy new
2. try factory resetting the device
3. install kies on pc it will install all the drivers that you need
4.your usb port(of the phone) is dead
I had the same problem pc was saying "USB cannot be recognized" I TRIED EVERYTHING from factory resetting, changing pc usb ports, changing usb, changing kernel, roms, trying on other pc, reinstalling kies and drivers but nothing. The problem was in the usb port on the phone where you connect the charger on the phone. That part is weak and so you have to change it. Take to customer service with your warranty and they will fix it without charging anything just tell them your problem and say that you read that most of the galaxy s2 users have this problem and that you didn't touch the hardware of the phone
Angelkom said:
It can be several reasons
1.the usb is dead buy new
2. try factory resetting the device
3. install kies on pc it will install all the drivers that you need
4.your usb port(of the phone) is dead
I had the same problem pc was saying "USB cannot be recognized" I TRIED EVERYTHING from factory resetting, changing pc usb ports, changing usb, changing kernel, roms, trying on other pc, reinstalling kies and drivers but nothing. The problem was in the usb port on the phone where you connect the charger on the phone. That part is weak and so you have to change it. Take to customer service with your warranty and they will fix it without charging anything just tell them your problem and say that you read that most of the galaxy s2 users have this problem and that you didn't touch the hardware of the phone
Click to expand...
Click to collapse
Warranty has already expired.
Kies was installed on the PC, ODIN gives no info @ COM port.
I wanted to connect it just to root and install CWM so I can swap ROMs as much as I want.
Thing is, the customer service wants 1 week to assess the issue and probably 100USD to fix it.
So for some god-knows-why reason my phone decided to conect to MTP while charging, I quickly restarted it into revocery mode and flashed CF_Root w/ CWM5.5.
Successful!
Bloody USB thingy!
Now I can start messing around with the phone.
Anyone has a n00blet guide on ROMs?
I was thinking about moving to CM 10.1, one of those nightlies running 4.2.2.
This is the one I used >> CF-Root-SGS2_XW_OXX_LPE-v5.5-CWM5
Can anyone suggest actions?
For future you should change your USB-Port. Here we get one for about 15 € (about 20 $) in ebay. It's very simple to change and then you have a full working phone again. Just watch the Videos on Youtube and everyone can do this. Hope I could help!
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
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?