Tip & How-To about Cell Phones

Charging mobile in cafe.

1. connect your mobile to the usb port.
2.usb port always gives a 5 volts.

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lost charger for samsung yp-k3 2gb mp3


The MP3 player is charged by connecting the supplied USB cable to the MP3 player and then plugging the other end of the USB cable into the USB port of a working computer.
You can also purchase a 5 volt mains USB adapter. Connect the MP3 player and USB cable to this 5 volt mains USB adapter to charge the MP3 player.

Dec 28, 2011 | Audio Players & Recorders

1 Answer

Hi, It was working fine with windows xp and a dvd drive, suddenly its not getting detected in either ports, but the blue light is on this is Transcend 500GB storejet



Try to refresh the USB ports.

1. Right-click My Computer icon on the desktop, and then select Properties.
2. Click the Hardware tab.
3. Click the Device Manager button.
4. Click the plus (+) sign to the left of Universal Serial Bus controllers.
5. Right-click the device listed under Universal Serial Bus controller and select Uninstall.
6. Click OK to confirm the removal of the device.

Please note, repeat Steps 5 and 6 until all the devices under Universal Serial Bus Controller are removed.

7. Shut down the computer.

CAUTION: Ensure that the Shut Down option is selected, instead of the Restart option.

8. Wait for 5 seconds and then restart the computer. When the computer restarts, a "Windows has detected new or added hardware" message window will open.

The above steps will refresh the USB ports.

Now connect the USB devices like mouse, video camera, your external usb hard disk...usb hubs...whatever you like and the drivers should install automatically.

Tip: It is always recommended to connect the main usb devices at the rear end usb port, as they require more power to initiate.

Apr 12, 2011 | Transcend StoreJet 25 Mobile 500GB USB 20...

1 Answer

my computer doesn't appear to be communicating with my printer. I am utilizing a usb cable and port. Is it possible that my printer USB port or modem isn't operating correctly??


Follow the steps given below to refresh USB ports.

1. Right-click My Computer icon on the desktop, and then select Properties.
2. Click the Hardware tab.
3. Click the Device Manager button.
4. Click the plus (+) sign to the left of Universal Serial Bus controllers.
5. Right-click the device listed under Universal Serial Bus controller and select Uninstall.
6. Click OK to confirm the removal of the device.

Please note, repeat Steps 5 and 6 until all the devices under Universal Serial Bus Controller are removed.

7. Shut down the computer.

CAUTION: Ensure that the Shut Down option is selected, instead of the Restart option.

8. Wait for 5 seconds and then restart the computer. When the computer restarts, a "Windows has detected new or added hardware" message window will open.

The above steps will refresh the USB ports.

Now connect the USB devices like mouse, video camera, your external usb hard disk...usb hubs...whatever you like and the drivers should install automatically.

Tip: It is always recommended to connect the main usb devices at the rear end usb port, as they require more power to initiate.


If I could be of further assistance, let me know. If this helps or solves the issue, please rate it and give a testimonial for my response

Thanks, Joe


Feb 01, 2011 | Samsung CLP 300 Laser Printer

2 Answers

I need to know what the amperage rating is for the USB ports on the Dell Inspiron E1505 laptop. It does not appear to be defined in the owner's manual.


most USB is 500 milli amps (which is 1/2 amp) @ 5 volts,
Some hubs can only provide 100 milli amps - but this usually when you have a dongle that give you more USB ports and it doesn't plug into some power source (to provide the extra power).

Feb 27, 2010 | Dell Computers & Internet

1 Answer

usb driver not installed in my computer


the usb driver should be there in the mother board disk, Normally phones require drivers to be installed. You can always google for it.

Jul 10, 2009 | Computers & Internet

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