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USB ports will not recognize any devices. - Acer Aspire 5100 Notebook

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Hi Brian

You have not mentioned the make of your laptop and what OS you are running on, however a common solution to this problem would be as follows:

1) Try doing a clean installation of the OS and check if it is detecting USB devices or not

2) Try finding a BIOS update for your laptop from manufacturer website and update the laptop BIOS

3) If the above steps do not work probably the USB controller integrated to motherboard would not be working, suggest sending it to the customer support of laptop manufacturer to get the motherboard replaced.

Posted on Nov 18, 2009

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Posted on Jan 02, 2017

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Laptop not recognizing device when plugged into laptop how to fix


The computer is not recognizing the device because the appropriate software or driver is not installed on the device.

Most of the time when you connect a smartphone into a compatible laptop the device drivers or software automatically install, so the laptop may recognize the smartphone.

Here are some possibilities as to why the device is not recognized.

1) The USB port is bad.
2) The USB port is not activated
3) One of the devices does not support the other

Here are a few possible troubleshooting solutions:

1) Go to the smartphone manufactures website and download and install the updated device driver and software then plug in the device to see if it is recognized.
2) (if Windows OS) Go to the Device Manager to see if the device is showing up when it's plugged in. If you see the device in device manager right click the device and choose to update the driver.
3) (if Windows OS) Additionally, in device manager you can check your device's USB ports to see if there is an issue with the ports that may be resulting in the smartphone not being recognized. You can choose to re-enable the USB ports or update the software for the USB ports.

Hopes that helps resolve your issues.

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Did you check whether the USB ports are recognizing other USB devices such as Microvault or Flash Drive? If all other USB devices are recognized except the Printer, then reinstall the USB Drivers. You can uninstall the USB drivers from the Device Manager and restart the Computer. The USB Devices are listed under Universal Serial Bus Controllers in the Device Manager.

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Greetings....

Please try to check if your USB port both rear and front USB port are not defective. Most common problem of defective usb ports are when plug your usb devices it won't recognize the device you inserted. So to make sure that your USB Ports are not the main cause why your computer won't recognize devices you inserted.

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There are few things to remember using USB.
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  • If you have to remove any USB device use 'Safely Remove Hardware'.

To remove currepted USB drivers its not enough to remove your printer drivers.
  1. You should un-install the 'Universal Serial Bus Controllers' from Device Manager.
  2. Then re-boot to clean registry.
  3. Install the 'Universal Serial Bus Controllers' using XP Setup CD.
  4. Then check the Mass storage, PDA etc, it should recognized by XP.
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I think it will fix.
Please let me know your feed-back.

Thanks
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USB Drive


Make sure you are matching the compatibility of USB 1.1 and USB 2.0 between the devices (computer and USB devices).

USB 1.1 device will work in USB 1.1 and USB 2.0, but USB 2.0 devices will not work in USB 1.1 plug in the computer.

How many USB ports do you have in the computer? Which ones have you tried other pen drives in? List the USB ratings for each device and port in the computer to further help.

Have the other USB devices been formatted with other computers? The formatting on other systems might not be compatible.

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