My signature mini 500 can't be read in any computer,it just show red light no blue light blinks..when plug it in computer first it says..hardware found but doesn't show ??what the solution??

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Charging Conventions

• 
  The majority of laptops will display a solid green, blue or purple battery light to indicate that the battery is fully charged. Most manufacturers indicate that a laptop is in the process of charging by displaying a solid or blinking green, orange, blue or purple light. If your battery indicator light is green, blue or purple, the battery is probably functional, regardless of whether the light is blinking. If the light is solid orange, the laptop is probably in the process of charging.
  
  

Battery Error Coneventions

• 
  Many battery manufacturers use rapidly blinking lights to indicate that a battery's charge level is low. In general, a laptop will rapidly blink orange or red when its charge drops below a certain level until the computer is plugged into a power outlet and charged. If your laptop's battery indicator continues to blink rapidly in orange or red or if it remains red even when it is plugged into the charger, it indicates a problem with your battery or the charger.
  
  

http://www.extend-partition.com/resource/how-to-partition-a-hard-drive.html

make sure the lead/s that attach to your hard drive are securely seated
if your computer came with a motherboard disc the drivers could be on it

click start control panel administration tools computer management device manager look through all of your devices if you see a yellow question mark?or exclamation mark ! or red x
right click to reinstall drivers or

if you can see your usb but its not working
ports(com&lpt)right click update driver
hope this helps

click start control panel administration tools computer management device manager look through all of your devices if you see a yellow question mark?or exclamation mark ! or red x
right click to reinstall drivers or

if you can see your usb but its not working
ports(com&lpt)right click update driver

sometimes the wires inside the cable will be damaged due to bending or stretching or placing heavy equipment upon the cable

just replace the cable of the hard disk, when you plugged the external disk drive you got that windows could recognize the USB device change the cable everything should work fine again,

check the USB leads that attach to the motherboard usually red-white-green-black make sure they are securely seated and have no dust build up on them dust will cause static and a lot of unforeseen problems

if this fails to fix the problem
you might have to install a usb 2 or 3 card they are cheap and easy to install you can buy these on Ebay very cheap

if you need help obtaining the usb card post a reply
hope this helps

Did you try plugging it into another computer? If it reads it on another computer then you can transfer your files. External Hard drives always fail sooner or later. Hope this helps.

When you plug the drive in, Windows should recognize it and make it immediately available for your use.

To confirm this, click Start then Computer and it should show up as a device with removable storage. If you click on the Signature drive, you will see the contents of the drive and you can use it just as ou would your "C:" drive.

It is easy, just conect it to the motherboard as a slave disc

It sounds like your hard drive is dead. If you have tried it on a different computer and it did the same thing then your drive isn't booting up and is probably bad.

Dear,
Please check this drive with another new cord to connect it with PC.

Regards,
Rakesh Kumar
Network Support Engineer

if you hear a constant clicking return the drive it is faulty.

Good luck finding an answer on this site