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USB Problems Acer v5


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6 replies to this topic

#1 Theral

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Posted 29 August 2014 - 11:01 PM

Okay. So this is the present issue: The USB ports are not registering whatsoever. When I start the laptop it says "The last USB device plugged in was not recognized" No matter what I plug into any of the ports it does absolutely nothing.

 

This isn't my laptop and the guy it belongs to would rather I not wipe his recovery drive because he says "It's the only way I know how to reformat".

 

I did a full factory reset and wiped absolutely everything when I got it, then got Microsoft Security Essentials on and updated(Had to remove Norton) fully updated windows, etc. And this issue was there the entire time. I've tried opening an elevated command prompt while it was on normally and while in safe mode and running sfc /scannow  and it finds issues but it cannot fix them.

 

When I check out the device manager it lists two devices as 'unrecognized'. I only have a very slight idea of what I'm doing and I'd love to figure out what the hell is wrong here, but I'm spinning in circles. Any helpful advice or links to advice on what to do to resolve this would be wonderful.   I can do a full reformat and install, but I've been loathe to do it since he doesn't want that done.



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#2 marry_smith

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Posted 30 August 2014 - 01:24 AM

You just disable & re-enable USB controllers on your system.

Right click on start button & click run

Type devmgmt.msc, and then click OK. Device Manager opens

Right click the first USB controller under Universal Serial Bus controllers, and then click Uninstall to remove it. Restart the computer. After the computer starts, Windows will automatically scan for hardware changes and reinstall all the USB controllers that you uninstalled

 



#3 Theral

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Posted 30 August 2014 - 09:22 AM

Okay. I did that and now ONE of the three USB ports work. I dunno why I didn't think to do that before. I feel really stupid now -.o; Any idea why only one would work?



#4 bomatt6

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Posted 30 August 2014 - 09:40 PM

Maybe look on the manufacture website for the computer you have and make sure your usb drivers are up to date.



#5 Theral

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Posted 31 August 2014 - 11:32 AM

I tried looking on Acer's webpage but I don't know if I'm having a stupid moment or not but I can't seem to find drivers. I even used their search by Serial Number feature and it comes up with nothin'.



#6 old rocker

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Posted 31 August 2014 - 11:46 AM

There are also options to Auto-detect my Serial Number & Search by Product.

 

http://us.acer.com/ac/en/US/content/support

 

You can also check the BIOS settings to see if all USB ports are enabled (if that is an option)



#7 rockysosua

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Posted 31 August 2014 - 06:44 PM

This may be the same as a similar situation that I ran into recently, where I had been installing drivers on a machine with a new Win 8 OS. The USB3 driver didn't take.

I can't remember exactly what it said, but it had failed.

After the next reboot, none of the USB ports worked anymore.

To my surprise, despite being told that the USB3 installation had failed, there it was in the Programs and Features folder in the Control Panel.

I uninstalled it, rebooted and all 3 USB ports worked again.

Here's hoping that works for you too.


All is well in Paradise.




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