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Usb hub root with an exclamation mark

Hi,
my usb hub root is indicated with an exclamation mark in my device manager list bcoz of which my mobile phone is not detected in my pc when i connect it . kindly tell me th ebest solution for this problem..

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What phone do you have? I know that with my phone, if I want to connect it to my PC via USB to transfer files and stuff, T-Mobile wants me to cough up and spend money on a cd that has the drivers for the phone on it.

Posted on Mar 16, 2008

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Posted on Jan 02, 2017

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Why the windows7 cannot recognize the usb cable device of psvita


w7

First, please disconnect all USB devices and then perform the following steps:


Click "Start" button, type "devmgmt.msc" (without quotation marks) in the "Search" bar and press "Enter". Click "Continue" if necessary.



In Device Manager, double click to expand "Universal Serial Bus controllers", right click on the Host Controller, click "Uninstall" and click "OK".



Repeat the step 2 to uninstall all items under "Universal Serial Bus controllers".



Then, restart your computer and Windows 7 will reinstall all USB controllers automatically.

Oct 07, 2012 | Microsoft Windows 7 Home Premium 64BIT...

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USB,Ipod and external hard drive not recognized in laptop,desktop.


Hi there,<br /> Follow this steps,if it is not working then post back i have 3 more steps left.<br /> <ol> <li>Click Start</b>, click Run</b>, type <span>Devmgmt.msc</span>, and then click OK</b>. The Device Manager</b> window opens. <li>Expand Universal Serial Bus controllers</b>. <li>Right-click a USB Root Hub in the list, and then click Properties</b>. The USB Root Hub Properties</b> dialog box is displayed. <li>Click the Power Management</b> tab. <li>Click to clear the Allow the computer to turn off this device to save power</b> check box, and then click OK</b>. <li>Repeat steps 3 through 6 for each USB Root Hub in the list. <li>On the Action</b> menu, click Scan for hardware changes</b>. <br /><br />Windows XP recognizes the new device. <li>Close the Device Manager</b> window.</li></ol> Hope this helps.<br /> Cheers!!

on Jan 05, 2011 | Computers & Internet

Tip

USB DEVICE DOES NOT recognize


Issue:: USB DEVICE DOES NOT recognize

___________________________________


Manual Troubleshooting for this issue::

___________________________________



-Open device manager

-Right Click on USB Root Hub

-Choose Properties >>Selet Power Management

-Remove the Tick Mark Before "Allow the computer to turn off the power if device is not in use..."

-Do the same for all USB ROOT HUB


-Then Uninstall all USB ROOT HUB

-Restart your computer , USB device will be working.

on Jun 21, 2010 | Computers & Internet

1 Answer

Asking for driver



click start control panel administrive tools ,computer management ,device manager look through all of your devices if you see a yellow question mark?or exclamation mark ! or red x
right click to reinstall drivers or
if you can see your usb but its not working
ports(com&lpt)right click update driver

if your computer came with a motherboard disk the drivers could be on it

or you could download them

http://download.cnet.com/usb2-0-driver-zip/3000-18493_4-163914.html Intel PCI to USB Enhanced Host Controller NEC PCI to USB Enhanced Host Controller B0 NEC PCI to USB Enhanced Host Controller B1 USB 2.0 Root Hub Generic USB Hub VIA PCI to USB Enhanced Host Controller


http://download.cnet.com/usb-2-0-root/3000-18493_4-55793.html



http://download.cnet.com/usb-mass-storage-controller/3000-18493_4-161651.html USB Mass Storage Controller
if these packages are not the right
http://download.cnet.com/2000-20_4.html
on the home page you should see a search tab just type in what you are looking for
(be precise)don't use numbers and / - you might have to try a few times to get it right
also the download software finder under that there will be a list place a tick in the box of any one you want/need
all software windows software mac software mobile and web apps

http://majorgeeks.com/downloads35.html

also this link will provide you with many freeware and share drivers

hope this helps you

Sep 27, 2011 | Toshiba HDDR320E04XW 320 GB USB Hard Drive

1 Answer

When I plug my USB mouse it dosnt work. what should I have to do?


Make sure whether USB ports are working fine or not. Or go to BIOS and check usb devices options enabled. If its enabled , restart your PC. Right click on My computer and go to manage and check device manager. If you see any yellow mark near usb devices or usb root hub you need to install chipset driver for your system mother board. If you are seeing any red mark near usb devices or USB root hub, right click on that and enable the device. If there is no mark and still your mouse doesn't work, issue with either USB ports on mother board or usb mouse.

Mar 31, 2011 | Computers & Internet

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Resolving intermittent Windows USB device issues


PROBLEM: USB Devices (Both internal and external) work intermittently.
DISCUSSION: Issue is caused by Windows power management disabling the USB Root Hub to save power (This option is on BY DEFAULT in all Windows installations)
RESOLUTION: Open Device Manager, scroll down to the USB Root Hubs Listings (There may be as few as two most I've seen is 7) Right click each hub, select Properties on the drop down menu, then click the POWER MANAGEMENT tab. There you will find a check box to allow windows to turn off this device to save power. Uncheck the box and close the window, repeat on remaining USB Root Hubs, then reboot.
This will resolve most intermittent USB device issues.

on Dec 03, 2009 | Computers & Internet

6 Answers

My Tata Photon Plus USB Modem is not being detected in my laptop. Previously it used to work (for almost 3 months). But now all of a sudden,it is not being detected no matter what. It works on my other...


Hi,
I just solved the same problem on my laptop with the help of Tata's tech support -
first, plug in the Photon plus modem, remove any other usb devices (mouse, etc)
right click on My Computer, select "manage". Click on Device Manager, expand the list of Serial Bus Conductors.
Right click on each "USB Composite hub" (not root hub) and uninstall.
after all composite hubs are uninstalled, go to the "computer" section at the top of the list in the Computer Management box. Right-click on "Computer" and click on "scan for hardware changes". Yiur system will reinstall the drivers and give you a notification at the bottom right corner of your monitor. Once u get the message "drivers successfully installed", open the Photon plus dialler and connect. It worked for me, hope it works for you too!

Jan 28, 2010 | Computers & Internet

1 Answer

Usb ports not working


  1. Checking USB device status in Device Manager
  1. Right-click My Computer on the Windows desktop and then click Properties.
  2. Click the Device Manager tab to display the Device Manager window as shown at the right. (For Windows 2000 systems, click the Hardware tab and then the Device Manager button.
  3. In the Device Manager list, click the + sign next to Universal serial bus controller.
  4. Verify that a USB host controller and a USB root hub are listed below Universal serial bus. image002.jpg
  5. If Universal serial bus controller, USB host controller or USB root hub are not listed, close the Device Manager and go to USB port incorrectly configured in BIOS
  6. If Universal serial bus controller, USB host controller and USB root hub are listed but one or more display a yellow exclamation point, go to USB controller IRQ conflict
  7. If you have Windows XP, right-click the Host Controller and select Properties from the drop-down menu. If you see this status message in the Properties window: The drivers for this device are not installed (code 28), go to Windows XP USB 2.0 driver not installed .
  8. If Universal serial bus controller, USB host controller and USB root hub are listed but one or more display a red X, go to USB controller or root hub disabled in Windows Device Manager.
USB port incorrectly configured in BIOS NOTE: The procedure in this section is intended for advanced users only. Incorrect BIOS settings could prevent your computer from starting or operating normally. If you are not experienced in making changes to your computer BIOS, consult your computer instructions or contact your computer manufacturer for assistance before attempting the steps below.
  1. Follow the instructions of your computer to view the BIOS settings. These settings are sometimes called CMOS settings or system setup.
  2. To view the BIOS settings, press a key, such as F2 or Delete, just after you turn on the computer. Instructions often appear on the screen briefly when you turn on the computer. Also check the instructions and manuals provided with your computer.
  3. Look for USB Interface or a similar setting in the Advanced Setup, Peripheral Configuration or another section of your computer BIOS settings.
  4. Follow the onscreen instructions or read the computer documentation to enable the USB port.
  5. Follow the onscreen instructions to save the new settings and restart the computer.

  1. USB controller or root hub disabled in Windows Device Manager
  1. Right-click My Computer on the Windows desktop and then click Properties.
  2. Click the Device Manager tab. (On Windows 2000 and XP systems, click the Hardware tab and then the Device Manager button.)
  3. In the Device Manager list, click the + sign next to Universal serial bus controller.
  4. Click the line in the Device Manager containing the red X.
  5. Click the Properties button. (On Windows 2000 and XP systems, click Properties on the Action menu.)
  6. In the Communications Port Properties box, click the Resources tab.
  7. Re-enable the USB device by clicking the Enable Device button and follow the onscreen instructions.

Dec 28, 2008 | Acer (91.42R37.001) CD-RW/DVD-ROM (Combo)...

1 Answer

USB device not recognized


Hi,
if it,s showing in the device manager as an exclamation mark. that means it,s found it, but can,t recognise it.
i,d suggest formatting and partitioning it, with some good software. also ensure that it,s powered via 2 usb cables to laptop, from 1 on the drive itself. some bigger hard-drives, need the extra power to drive them.

Mike @ compurepair.

Jul 25, 2008 | Western Digital 500GB My Book World...

1 Answer

USB devices not seen


i'm looking for those with question marks or exclamation points...

Mar 28, 2008 | Computers & Internet

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