Help! I dropped my external HD and now my Macbook Pro will not recognize the drive. I have tried to repair the disk and that does not work. Please offer help, suggestions, something!

You can try another program like Diskwarrior or Tech Tool Pro, If I was you I would invest that money in a new hard drive. I am thinking your drive is damaged, you will need to replace it.

It is very possible your hard drive is damaged.

I personally wouldn't mess with it too much if you have valuable data that you need to recover on that drive.

Take it to an Apple Authorized Service Provider (an Apple store won't help you) that does data recovery. I would get that data off first, then see if the drive is still worthy of storing your information. The more you use a damaged drive, the less likely you are to get the information off of it.

If an AASP can't help you, there are other services that are very successful - although very expensive.

Unfortunately, a drive that has been mechanically damaged by a drop and can't be repaired using Disk Utility probably can't be fixed any other way either. The best you can hope for is to salvage as much data from the drive as possible using one of the data recovery utilities linked below, and then replace the drive.

http://www.prosofteng.com/products/data_rescue.php

http://subrosasoft.com/OSXSoftware/index.php?main_page=product_info&products_id= 1

http://download.cnet.com/VirtualLab-Data-Recovery/3000-2094_4-10298807.html

If you can't recover your most important data using one of these utilities, the only remaining hope is a data recovery service, which is very likely to cost $1000 or more for a 1TB drive.

I don't think so, if the data is important you can try taking it to a professional data retrieval service. It not cheap so if has to be important data.

Any reason or suggestion why you would think now it doesn't even show up?

Yes: the fall damaged the drive, and because it isn't operating correctly, essential data components on it have now been corrupted, preventing it from being detected normally.

It may still be worthwhile to try data recovery software, which is designed to salvage data even from some drives that won't mount. It is, however, necessary that the drive spin up and the heads operate, so if the drive makes no sound at all to indicate that it is spinning up, you're in real trouble.

As in all cases when a drive fails for any reason, your situation could easily and inexpensively have been avoided by maintaining an up-to-date backup of the drive's contents on a second external drive. All valuable data should always be backed up on other media.

shryocdj wrote:

The more you use a damaged drive, the less likely you are to get the information off of it.

It is possible, but stop messing with the hard drive! Either purchase data rescue if you want your friend to try or take it somewhere that does data recovery (we charge $80 at our shop - just so you have a price point).

Otherwise you're looking at a Clean Room which starts at around $1000 depending on how much data, the type of damage and some other factors.