Question about Cell Phones

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My laptop does not see my phone. I have Windows 7 home edition.When I plug it in USB port, it says unknown device and when I do update driver, it could not find it online. What should I do? Thx!

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You must download its PC Suite to be deteceted by your computer.. or try plug it and reboot your computer.

Posted on Apr 01, 2011

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1 Answer

Device not found when plugged into USB.


Hi! Hope this makes your day feel good:) I understand that the windows phone device is not having trouble until you reset it. Now, the hint here is due to the device compatibility issues as the main cause. If you had happen to backed your device apps, contents, and settings you can simply restore it, but if twas not try to uninstall the application and drivers and reinstall it the way you reinstall at first. If necessary update your windows phone's operating system and make sure your PC operating system is working great also, I mean all USB drivers is installed. Other thing is, please try plugging your device to other USB ports to check if it supports fast USB bus speed (Version 2.0 - 3.0) or the native(windows) usb driver wasn't overridden by the windows mobile phone us driver.

Jan 09, 2014 | Lenovo ThinkPad Computers & Internet

Tip

USB devices not recognised or not working properly?


Try these steps to reinitialize your usb ports on your pc

1. Unplug ALL USB devices connected to the computer. If you are using a USB mouse and keyboard, temporarily use the older type PS/2 devices if you have them, if you don't then just leave them connected.

2. Hold down the windows key and press r

3. Type devmgmt.msc into the run menu and press ok

4. Click on the + sign next to the Universal Serial Bus Controllers
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5. You might need another mouse to do this if you have a usb mouse.. I recommend you get a ps2 connector mouse which goes into the green round connector in the back of your pc.
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6. Right click and uninstall first the usb root hubs. all of them then uninstall the rest of the devices you see under Universal serial bus controllers

7. Ones you have uninstalled everything you should see the Universal serial bus controllers there at all.

8. Now go ahead and restart your pc.

9. Ones you have restarted the pc your usb ports will reinstall in a moment stand by while it installs all of them. If you get warning messages click ok or continue installation.

10. Now go ahead and plug the usb devices back in. Install software if required, all usb devices if not faulty or broken should work now. Also note the error code if you get one?

This solution doesn't fix all usb problems so if you have a yellow ! mark there and device status reports a error code. Then it might not be a problem with your usb ports.

Thank you for reading, do leave suggestions, comments, feedback below.
Ekse


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on May 04, 2008 | Microsoft Windows XP Home Edition

2 Answers

Medion pc usb host controller drivers windows 7 64 bit


Medion Model number? Usually if you run Windows Updates Windows 7 will apply a generic driver. Did the Medion come with Windows 7? Have you tried a System Restore? If you oprn the Device Manager , do you see any Unknown Devices? Slects VIEWS, select Show Hidden Devices, open the Unknown Devices and try to Update Drivers.

Jun 30, 2013 | Computers & Internet

1 Answer

No video from VGA port


It's common in a OS upgrade. Open Device Manager. Are their other Unknown Devices Listed? Go to your Laptops Manufacturer's website and download drivers for unknown devices.

Jan 13, 2013 | Computers & Internet

1 Answer

ASUS P5N73-AM not show monitor and usb device/port not working. Running windows 7 home edition about 1 year but not found problem.yesterday found problem.how to solve



click start right click on computer select properties then device manager scroll to universal serial bus controllers if you se a yellow question exclamation mark ? ! or a red X you will need to update/reinstall drivers right click select update drivers
once inserted windows 7 should automatically install the drivers
if you computer came with a motherboard disk the drivers could be on it

if you can see your usb drive but its not working
ports(com&lpt)right click update driver
if this fails to fix the problem check the usb leads inside your computer usually

usually red white green black make sure they are securely seated and have no dust build up on them dust will cause static and a lot of unforeseen problems for a computer and its parts
hope this helps you

Sep 09, 2011 | ASUS P5N73-AM Motherboard

2 Answers

My laptop with windows 7 all of a sudden cannot detect any usb? indication at device manager, usb host controller, there's an unknown device??can u help me what to do?


hi.
the Driver of USB Controller is deleted (by a virus or something like that)
and you need to install some drivers.
so put the motherboard driver Disk in your drive and try to update the unknown device in your Device manager
or install complete drivers of the Disk.

Jan 29, 2011 | Microsoft Computers & Internet

1 Answer

My usb connector malfunctioning


Instructions
  1. 1

    Turn off your computer.

  2. 2

    Unplug the power supply, remove your laptop batter, and wait at least 30 minutes before returning the battery and power chord to the laptop. As explained by Trouble Fixers, a cache of data from your USB device is stored on the motherboard. This cache is not completely erased until the motherboard fully discharges following power-down. Once the cache is cleared, most USB errors will be fixed.

  3. 3

    Turn on your laptop computer.

  4. 4

    Try to use the malfunctioning USB port. In most cases, simply turning off and unplugging the laptop will help remedy the problem. If a problem persists, continue with Step 5.

  5. 5

    Click on the "Start Menu."

  6. 6

    Click to open the "Control Panel."

  7. 7

    Click on "System and Maintenance."

  8. 8

    Click on the "Device Manager." A new window will open that lists all hardware and external devices currently installed on your laptop computer.

  9. 9

    Scroll the list until you notice the heading "USB Root Hub." Click on this option.

  10. 10

    Select the USB port that reads "Unknown Device." All other, functioning USB ports should say "unused port" or list a specific external USB device.

  11. 11

    Right-click on the Unknown Device port and then select "Update Driver." According to the tech-help website, Amit Bhawani, this will trigger an automatic update of the USB drivers. If no new drivers are found, the old driver will also refresh and repair. In many cases, a malfunctioning port is simply caused by outdated driver software. With the latest drivers, your port can be used with current USB devices without any problems. If problems do reoccur, then the port may be physically damaged and you'll need to take the laptop computer to a computer repair technician to get a new USB port installed.

dont forget to leave a comment and state how helpful this post is to you

Oct 05, 2010 | Nokia N70 Cellular Phone

1 Answer

Running windows XP home edition get message USB


Try reinstalling the motherboard drivers, maybe something is wrong with the USB controller.

Jun 07, 2009 | Computers & Internet

1 Answer

Windows does not recognize USB connection to the SpeedStream 6520- malfanctioning


try using different USB port. if the it is unknown device. means the machine didn't recognized the device. you may have to install the device driver. (windows is a funny thing).

Nov 05, 2008 | Siemens SpeedStream Modem (4100) (SS4100)

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