All laptop USB ports stopped working at once. Laptop stopped recognizing any USB device plugged into any USB port.

Possible cause:

1. Software problem.
2. USB controller failure.

Possible troubleshooting steps and repair solution:

1. Uninstall all USB related entries in the device manager. Restart the laptop and let it re-detect USB ports and install drivers. Test USB ports. If it doesn’t help, move to the next step.

2. Back up all personal files and reinstall Windows from scratch. It possible that all USB ports stopped working because some system files got corrupted.

3. If reinstalling Windows from scratch doesn’t help, most likely this is hardware related failure. Apparently, the motherboard has a failed USB controller. If that’s the case, the whole motherboard has to be replaced.

Alternatively, you can use an external PCMCIA USB card. You plug this card into the PC slot and get 2 or 4 USB ports instead.

The laptop freezes completely when USB device connected.

Possible cause:

1. Defective USB device.
2. Bad USB port.
3. Corrupted software.
4. Motherboard failure.

Possible troubleshooting steps and repair solution:

1. It’s possible the USB device is defective. Test your laptop with another USB device.

2. If the laptop freezes when USB device is plugged into one particular port, most likely the port itself is defective. Repair or replace the defective USB port or use the laptop with remaining working USB ports.

3. If the problematic USB device requires a special driver, try reinstalling the driver and test this device again.

4. Go to the device manager and uninstall all entires from the Universal Serial Bus controllers. Restart the laptop and let it re-detect USB ports and reinstall drivers. Test your device again.

5. It’s possible that some core system files are corrupted. Try reinstalling the operating system from scratch. Test your USB device after that.

6. If none of the above mentioned steps help, most likely there is a problem with the USB controller on the motherboard. In this case you’ll have to replace the motherboard.

By the way, instead of replacing the motherboard you can try using the laptop with a PCMCIA USB card. You plug this card into the available PC slot in your laptop and get 2 or 4 USB ports instead.

One USB port in the laptop is loose and stopped working. When you plug a USB device into this port nothing happens, it’s not detected by the laptop. The same USB device works fine in all other USB ports in the laptop.

Possible cause:

1. Bad connection between the USB port and motherboard.
2. USB port broken.

Possible troubleshooting steps and repair solution:

1. In most laptops USB ports are soldered directly to the motherboard or USB board. If you use USB ports a lot, overtime the solder joints between the port and motherboard can get cracked and the port loses contact with the motherboard. That’s why it feels loose and the USB device plugged into this port is not recognized. Resoldering the USB port might fix the problem.

2. The USB port could be broken. You’ll have to replace the broken port or use only remainging workng ports.

If all USB ports are broken and you don’t want to spend money fixing them, you can buy a PCMCIA USB card. You plug this card into the available PC slot in your laptop and get 2 or 4 USB ports.

One of the USB ports in the laptop does not work properly. The laptop detects a USB device only if you wiggle it inside the USB port. You have to adjust the position of the USB device in order to make it work. All other USB ports in the laptop work normal.

Possible cause:

USB port failure. The port itself is broken or connection between the USB port and motherboard is broken.

Possible troubleshooting steps and repair solution:

If a USB device has to be wiggled inside the USB port in order to be detected, most likely the USB port is broken and has to be resoldered or replaced.

It happens when the USB port itself is damaged or connection between the USB port and motherboard is broken.

1. Remove the motherboard and resoldered the problematic USB port.
2. Unsolder the broken USB port from the motherboard and replace it with a new one.

All laptop USB ports stopped working. You tested them with a few different USB devices but none of them is detected. When you plug a USB device into either USB port, the laptop doesn’t react at all.

Possible cause:

1. Software related problem.
2. Motherboard problem.

Possible troubleshooting steps and repair solution:

It’s likely that all USB ports stopped working because of software related problem.

1. Enter the device manager and uninstall all USB related entries found in Universal Serial Bus controllers. Restart the laptop and let it redetect USB ports and reinstall drivers.

2. If manipulations with the device manager do not help, try reinstalling the operating system. It’s possible that reinstalling the operating system will fix your USB ports.

If reinstalling the operating system doesn’t help, most likely it’s a hardware related problem. You’ll have to replace the motherboard because all USB ports are controlled by a circuit integrated into the motherboard.

Alternatively, if you don’t want to replace the motherboard, you can use a PCMCIA USB card.

You plug this card into the available PC slot in your laptop and get 2 or 4 USB ports instead.