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Apple Notebooks Apple's notebook computers including MacBook Pro, MacBook, MacBook Air, PowerBook, and iBook.

2012 Macbook Pro with retina display won't recognize my External Hard drive.


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Mick350

 
Member Since: May 26, 2012
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I have 2 Macbook Pro's, a 2009 and this brand new one I got today. My external hard drive is a 1 TB click free. It has worked for months on my old Mac but when I plug it into my new mac it doesn't even show up in finder or disk utility. I tried the USB ports with another device and they work fine. So it isn't a hard ware issue.
Can someone offer me help onto how I can get my Mac to recognize it?
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SoulRed12

 
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It might be formatted for Windows only, i.e. NTFS. Either connect it to a Windows computer and reformat it as FAT32 (and then connect it to your mac and reformat it again as HFS+ Journaled) or download an app for your mac to let it recognize the external drive. Like this one (don't know if it will actually work, it's just what a quick google search turned up)

EDIT: Just saw you said it works with your other Macs. Could they already have software like the above installed?
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ycl1688

 
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did you run software update on your new mbp ? the goal is to keep the software as current as possible.
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Mick350

 
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I did update my mbp as soon as I booted it up. It is fully up to date. I tried calling apple tech support and they don't know what the problem is either because it isn't a hardware issue.
I am trying to find a firmware upgrade for it but I am starting to think the only way this will work is if I reformat the external hard drive.
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ycl1688

 
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maybe take it to a apple store and show them the problem. bring your external drive along though.
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A quick question. The new Macbook is all USB 3.0. What drive do you have, brand and Model? I know USB 3 is all supposed to be backward compatible, but who knows! If I have the info on your drive will see what I can find.
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Mick350

 
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Yeah I am thinking I will take it in to them later this week, I feel like they will say the same thing; that I should reformat it and try again.
The External hard drive is a clickfree model # HD2037N3
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OSX out of the box reads NTFS perfectly. It just won't write to NTFS without either a hack or after market apps.
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chscag

 
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I believe Dennis is correct. Some USB 2.0 drives are simply not compatible with USB 3 regardless of the "backward" compatibility as stated. The problem is the speed of the USB 3.0 port being many times faster than USB 2.0 (and even firewire).
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according to the model number provided the drive is USB 3.0

Clickfree C2N 2 Terabytes (2TB) SuperSpeed USB 3.0 3.5" Clickfree HD2037N3 Clickfree C2N

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macmacattack

 
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Quote:
Originally Posted by Ramimac1 View Post
according to the model number provided the drive is USB 3.0

Clickfree C2N 2 Terabytes (2TB) SuperSpeed USB 3.0 3.5" Clickfree HD2037N3 Clickfree C2N
So uhh, is it plugged in?
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Mick350

 
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Yes it is plugged in, I have both macs beside each other, I can eject it from my old mac and go to put it in this one and I get no response at all from it. I even tried to send the "Clickfree" application to the new mac via air drop and it still doesn't recognize it.
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Mick350

 
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Also, I asked on another site and got this reply:
"I am having the EXACT same problem and I can't seem to find an answer to this. I'm using a 1tb external and it works fine on all my other computers but I can't get it to work with my new macbook pro with retina display. I'm really hoping someone can figure this out."
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Are you sure the particular model he has is USB 3.0? Note he has the 1 TB model not the 2 TB or 3 TB which are in fact USB 3.0. The web site also states that the C2N is USB 2.0 only.
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Mick350

 
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I am 100% positive, it says "USB 3.0" right on the cable
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