Here is my problem. I have a Sony VAIO external 40 gig drive. It works everywhere but on my Dell Latitude D800 Windows XP SP1 Laptop. I get the "USB Device not recognized" bubble. I tried installing SP2 but when I put the drive in the laptop blue screened so I reinstalled SP1.

This thread helped my situation. I took a couple shortcuts; left the batteries in the mother board and only unplugged the power cord for twenty minutes.

I had originally thought my usb backup drive had gone belly-up but after three days and this thread here is my report:

D-Link DPH-50U


D-Link DPH-50U Skype AdapterAfter some time the DPH-50U reports 'Device no Present' and shows the red icon. In XP running devmgmt.msc shows 'unknown device' under Universal Serial Bus controllers. The only solution I have found was discovered here:
http://www.ntcompatible.com/Desperately_need_help_---_USB_Devices_Not_Recognized_t32356.html

To re-enable the DPH-50U the following steps are necessary:

1.) Unplug the DPH-50U from the usb port
2.) Add Remove Programs and removing the D-Link DPH-50U
3.) Start Device Manager (Run>>CMD>>devmgmt.msc) remove unknown device under Universal Serial Bus controllers
4.) Powering down and unplugging the computers main power cord for twenty minutes
5.) Boot up, re-install DPH-50U software and follow the prompts to re-plugin the DPH-50U

D-Link must know of this situation as it has been previously reported; I discoverd it by Googling D-Link "Device Not Recognized". While I can get it back to normal for a time it eventually goes belly-up again. Are there any solutions to this?

If you can think of any pm me or post here. I have a copy of my secenario here:
http://flashhq.net/d-link/

this topic is reeeeeeeallly old!

but hopefully this will still help people!

I HAVE THE SOLUTION! READ THIS:

if when you plug your ipod in it says 'usb device not recognised', here is how to solve the issue,

unplug your ipod from the pc

put you ipod into disk mode; toggle hold on and off, press and hold menu and select buttons, when the screen changes quickly press and hold select and play key, the screen should now say disk mode and have a big tick, if not keep trying.

now your ipod is in disk mode, plug it back into the computer, the computer will now recognise it, it may want to install an update, if it doesnt do it automatically then load the ipod updater and do it yourself, when it has installed the update it may not recognise the ipod anymore, dont worry, just unplug it and plug it back in again, it will then load for a while, when it sqays ok to dissconnect on the ipod screen unplug it and oput your ipod back into normal mode; toggle hold on then off, press and hold menu and select keys and hold for 6 seconds. plug the ipod back in and sorted! your ipod should work now

;) good luck

I'm glad it's old, and reborn

Okay, first post and first question.
I just purchased an XBOX360 and am trying hard to get online rosters, which are downloadable, however you need a transfer kit:

http://news.teamxbox.com/xbox/10383/Xbox-360-Transfer-Kit-Update/

- which is what is giving me the problem.I'm getting this USB device not recognized error as well. The problem occurs when I plug in the device with the memory card attached (this is what is required to be done in order to transfer data). But the device isn't even recognized when the memory card is taken out - so I believe that is the culprit. Any help is highly appreciated.

Specs:

p4 2.6ghz Sony Vaio (PCV-RS 320 Motherboard)
1GB RAM
120GB SDRAM
NVIDIA 6600GT

Hi,
I have been facing teh same problem and i have tried all methods mentioned including registry addition and usb reinstallation.

I am using XP-2 on Intel D845GVSR mother boardand USB 2.0 installed.I am using Frontech JIL-750 usb webcam.
I am getting this USB malfunctioning error regularly and i am not able to get a permament solution.

On googling i found this links.i havnet been able to try them out pleasae help me to solve the problem it is quite bugging.

http://searchwincomputing.techtarget.com/tip/0,289483,sid68_gci1059071,00.html

http://searchwinit.techtarget.com/tip/0,289483,sid1_gci1041784,00.html

in the second link as mentioned am not able to see that advanced tab option on rooot hubs.Does anybody have any idea to it.

i hope somebody can have a permament solution to my problem.
thanx

Originally posted by vitalviking:

"I have just experienced the same problem with my printers working on USB ports but not my USB memory stick or card reader and I got exactly the same error message as yourself.
I phoned my computer manufacturer's helpdesk and they told me I would have to re-format my hard disk and re-install Windows XP which I did only to find that the problem still existed.
Someone on one of the newsgroups to which I am subscribed suggested not only closing down my computer but also switching it off at the mains socket. Seemingly this allows any residual current on the motherboard or any stray capacitance to discharge.
Believe it or not it worked! I now have all my USB ports and devices working as I want them.
Hope it works for you - it must be worth a try :-)
--
Vital Viking"



Oddly enough it worked for me. I still have to say WTF to whats going on.

My problem was my USB d-link airplus G not being recognized and windows telling me it malfunctioned (Wtf) it seems that all of a sudden USB 2.0 is not supported by the computer. I also tried a USB 2.0 hub and it still said "not recognized - malfunction ".

SOLUTION RECAP

This worked for me! thanks for posting the information! As for anyone else who has a similar problem you should try shutting down the computer and literally disconnecting the powercord from the powersupply then reconnect after a few seconds and start up the computer again! - IT WORKS!. Miraculously it worked for me!''

I tried this and it didnt work ,should i tried to un-install all the USB drivers first, then re-install and let it stand for 30 mins? hope someone replies as this forum is old.

thanks heaps!

supahfly

Ok . . . here it is for those using 3.5 storage boxes with hard drive inside . . . some hard drives can function in cable mode (look at the face of the hard drive . . shows you where to put spacer/isolator) if you're having trouble, put the drive in master mode . . . it's that simple.