help me to solve my problem

"i have connected my camera's chip through a portable device with my laptop"

Do you mean you have put your camera's memory-card in to a card-reader connected to your laptop?

If yes, the memory card may be corrupt and therefore unreadable, so you need to buy a new card.

Before buying a new card, try using a different laptop to read the existing card.
 
Apr 2, 2014
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4,510
thank you for your reply. but actually its not the problem i think, if i connect a pen drive, it have to showed in disk drive F:\ . but now it is being shown in G:\ in device manager, a usb connector is in not working state
 

DarkstarNH

Reputable
Feb 15, 2014
5
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4,510

What drivers are listed for "disk drives" in device manager?