Solved

USB ports stopped working

Posted on 2014-04-30
6
375 Views
Last Modified: 2014-05-02
Hi There

I have been given a Vostro 1540 laptop by a friend to have a look at. It has recently stopped the use of all usb functions. I go in to the Device Manager and everything looks good, no errors. I delete them all and restart the machine. Again all looks fine but nothing works.

I plug in a usb key and although the light comes on nothing shows on the machine. I have also tried plugging in a mouse. When I do so the red light beneath flickers of for a second and then again, nothing.

The USB ports did work and I know this as I did some work on the laptop before Xmas and there was no issue then.

Any ideas would be great.

BTW - All W7 updates are up to date
0
Comment
Question by:doey
6 Comments
 
LVL 4

Expert Comment

by:xaichen
ID: 40032644
Hi Doey,

Do you know if the ports are working ok before the operating system fully boots? You can test this by plugging in an external keyboard and keep mashing the F8 key as soon as you turn the system on. If you are able to get to the boot menu then this rules out physical hardware faults and the need for hardware repair/replacement.

If you are able to try using the F8 menu and use the arrow keys to boot to Windows Safe Mode and try the USB functionality again it would be interesting to know the results. If all works ok in safe mode this could be an issue caused by conflicting 3rd party drivers (has any new software hardware been installed recently?) Maybe try a Windows System Restore back to before any major changes if the owner can be specific as to when the problem started.

I hope that helps.
0
 
LVL 19

Assisted Solution

by:Rob Hutchinson
Rob Hutchinson earned 166 total points
ID: 40032664
Can you boot to a USB bootable drive using Win7 or another OS and see if the problem still exists?

Maybe check the BIOS settings if the USB is still not working when booting to a USB drive.

If the USB drives will not even boot, then it's a good indication that the problem might be hardware.
0
 
LVL 88

Expert Comment

by:rindi
ID: 40032684
First check your BIOS settings. Some PC's have options in the BIOS where USB is enabled or disabled. If there are no such options, boot the PC up to a Knoppix LiveCD. If You can connect and use the USB ports there, you'll know that it is a windows problem, if it won't work under Knoppix either, it is a hardware issue. If that is the case, look cloesely at all the USB ports. There is a plastic part inside which supports the USB contacts. I've seen situations where that plastic part had broken off (probably because someone had brushed past when something was attached to the port and that yanked out that device by force). This will often cause the contacts to touch each other, thus short circuiting. If you see something like this, try separating the contacts so they don't touch each other. If you are lucky, the other ports might then start working again.

If you can't see any such physical damage, there isn't much you can do, short of changing the mainboard (which usually is more expensive than a new PC). If your PC has a PC-Card or PCI-Express slot, you could also get such a card with USB ports.
0
Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

 
LVL 88

Accepted Solution

by:
rindi earned 167 total points
ID: 40032694
Forgot to provide the Link from where you can get knoppix liveCD/LiveDVD iso:

http://distrowatch.com/table.php?distribution=knoppix
0
 
LVL 92

Assisted Solution

by:nobus
nobus earned 167 total points
ID: 40033963
you can try a system restore to a date they worked ok
0
 

Author Comment

by:doey
ID: 40037642
I tried all the bios settings and booting with a usb mouse & keyboard before writing this, but none of them worked.

I have to thank everybody for all of their help but it looks like there was something else going on. I don't know what as the machine just died. I opened it up to see if there was anything obvious happening like a loose cable or so. But no.

Thanks again
0

Featured Post

Flexible connectivity for any environment

The KE6900 series can extend and deploy computers with high definition displays across multiple stations in a variety of applications that suit any environment. Expand computer use to stations across multiple rooms with dynamic access.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

The Samsung SSD 840 EVO and 840 EVO mSATA have a well-known problem with a drop in read performance. I first learned about this in an interesting thread here at Experts Exchange: http://www.experts-exchange.com/Hardware/Storage/Hard_Drives/Q_2852…
When you try to extract and to view the contents of a Microsoft Update Standalone Package (MSU) for Windows Vista, you cannot extract the files from the MSU. Here we are going to explain how to extract those hotfix details without using any third pa…
This Micro Tutorial will give you a introduction in two parts how to utilize Windows Live Movie Maker to its maximum editing capability. This will be demonstrated using Windows Live Movie Maker on Windows 7 operating system.
The viewer will learn how to successfully download and install the SARDU utility on Windows 7, without downloading adware.

820 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question