When I connect my Mobile via USB its shows “USB Device Not Recognized” error.
To rectify it I started uninstalling/updating drivers and then reinstalling them. But that didn’t work. You may also see in Device Manager that the device shows up as an “Unknown Device”
To fix this Problem do as follows,
The motherboard is where all of hardware of the computer is connected to, including the USB ports. Sometimes the motherboard needs to be “rebooted” because something goes wrong, i.e. all your USB ports suddenly stop working.
First Turn off your computer using Shut Down or pressing the Power Button and unplug the computer from the power supply. It does not mean just turning off your computer because modern computers don’t really turn off when you press the power button as the motherboard still gets power.
Wait for a minute then reboot your system .Now when you connect any device via USB the computer will detect.
September 25, 2008 -
Posted by
increa |
Windows Hacking |
USB |
40 Comments
hai
tq for that post
really usefil info
keep it up..
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Worked
Thanks
did not work in my case. I purchased a ps2 to usb adapter from an ebay seller in hong kong, only one i found. It’s used to adapt a ps2 keyboard to usb. When I plug it in, the lights on the key board flash, then no further signs of life
worked for me!!! thanks
I wanted to add one more thing…if you have a laptop…also don’t forget to remove the BATTERY and the power cord for a minute!
thaaaanx very much
Hi,
UR Solution worked for the time being but came again later…
Thanx anyway
This also worked for me. I’m not sure if it mattered, but at first I got the same “USB Device Not Recognized” message, then I plugged the device into a different USB port and the usual “Found New Hardware” stuff was activated.
sweet! worked!
Wow, I tried everything else but this. Worked like a charm. Thanks.
me too. its work for me. thank you a lot. keep up the good work.
Tried this several times. Some times for hours long. No luck. Laptop went to sleep overnight, next morning, could not restart. Had to remove battery and power to reboot. Since then, all USB ports do not work. Tried other ports, shows drivers installing, then pop up device not recognized.
OMG, it WORKED! I can’t believe the solution was so simple after all the hair pulling I did and everything I tried.
Thanks SO much!
thank you it worked immediately …:)
Did not work in my case MS XO 2002 SP2
dID NOT woRK
After several hours of trying everything and looking at dozens of posts. Didn’t work first time, you have to unplug everything and remove the battery if on a notebook. Tried it again and it worked. Saved me having to be a new KVM. Many thanks.
thanks ..;
Well I know this is all over the net about fixing this but I’ve come to realize what is causing it. It is a Disk Drive under Device Manager called ASAP USB Device.
I’ve found that without even rebooting, changing anything, or even shutting down. For some people shutting down and leaving off may not be an option.
Try this. Go to \Windows\inf folder and search or highlight something and type disk.inf – once you find this file right click on it and pick install, it should load up your missing or unknown device.
Hope this helps and it will keep you from rebooting or changing anything. This is used when everything works fine for months then upon a reboot out of nowhere you get the error, it may also fix issues for those that have other issues with USB devices not being recognized.
Help, tried shutting down and unplugging. Did not work. How do you find the windows info folder?
when i try to do this i just get a message telling me “the INF file you selected does not support this method of installation.”
solution in the blog didn’t work either :/
Mate! You are GENIUS!
)
I was cleaning registry, windows infs, reinstalling drivers, upgrading BIOS, dancing, singing, everything.. with NO results.
And now. I just took out the power cord..
It’s WORKING now.
Thanks for that tip mate!
Take care,
Bo
Hi, friends, I have the same damn problem, but the power solution didn’t work for me, any advice? Please I’m desperate… I can’t connect anything to my laptop :/
Thanks a lot.
I’m having this problem with my Acer Aspire 3100 and I’ve wiped it twice already and the problem still persists. I used the Acer Recovery Disk, which I paid $40.00 to obtain, and the USB error did not go away.
I will try the power supply shut down first and if it doesn’t work, I’ll try the disk.inf trick.
I will keep you posted on the results. Thanks so much for the help, this is the only useful forum I’ve found so far.
Thanks for the tip on usb fix it worke for my computer shuttig down the power from the power sours,fantastic, I was almost going to order my first mac computer,but OK now.
Tried all that and more… device works fine elsewhere so is definately software. All I have to say is I hope someone out there smashes Bill Gates in the face for this error. Fancy writing software that tells you to throw away your hardware because it is faulty. Good one microsloth loosers!!!!!
thanks a loooooooooooot
wooho
you saved my day
your a life saver man. i tried everything in the net but this LOL it was the best!!
Thanks a lot… this really helped.. all my USB ports were malfunctioning, didn’t think the solution was this simple
i am working with Vista operating System in laptop, My USB Ports are not recognise the pen drives
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Your blog is so informative … ..I just bookmarked you….keep up the good work!!!!
Thats very good to know… thanks
really niiiiiiiiiiiiiiice! i was surprised! i searched in many sites and i couldn’t think it could be solved in such an easy way!
thanks so much.
the problem is with my usb, anyways you can fix error on usb to be reconized ?