My usb external Buffalo ministation is not been recognised on my pc and the LED light is flashing green and orange

You should try mounting the hard disk internally since any external HDD is actually a normal HDD in a SATA to USB enclosure. If that doesn't work , you should try finding recovery experts in your area but that might be expensive!

PC or mac
try other PC?
try all direct connected, to PC , USB ports.
does the light glow red/green or blue? LED? if not , it has no power.
or is dead.
this slow drive gets its power from the USB port.
and is weak power and problematic , across all platforms.
the horses mouth

http://en.faq.buffalo-global.com/app/answers/detail/a_id/11884/p/1492,1493

Im having the same problem sound like your cable is not working or you need a new case because the pins are broken.

My ministation was doing the same, beeping and flashing green light after a light drop on the floor. Soo... I took my ministation usb drive out of the plastic enclosure and smacked it on the table a few times. Plugged it in and it spun back up!! Now my computer recognizes it and everythings working smooth! I assume something with the drive became jammed and the couple smacks loosened the drive head.. Anyway, if all else fails... beat 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

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
type in run "regedit" then press ok then you can see registry editor then locate below key. HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11 CE-BFC1-08002BE10318} And remove upper filter and lower filter.

Then restart computer then check.


Also locate the below key and make sure it's value is 3 not 4. HKLM\system\currentcontrolset\services\usbstor make sure start value is 3 not 4

if still no luck
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
hope this helps

hi.
see if this link helps you out.
external hard shows an orange light instead of the usual green Google...

Try to plug your External Drive to other usb port or to other computer, or change the cable.

let me know the result.

dm

windows xp and win 7 drops out the drivers as it is no ;longer supported by Microsoft

Try accessing it in another USB port or computer. If still not, it may unfortunately be damaged. You may be able to get it replaced under warranty.

It is the Problem With your Battery of the Laptop ........ Replace it