So without any delay, let’s have a look at them. External, internal, and hard drives do not show up to varying levels. "Sharing and explaining", could be Potus' right hand man, when it comes to dealing with people and all the systems affected. MAKE SURE THE HARDDRIVE CABLE CLIPS IN!!!! I tried to connect another hard disk and got the same error message. I have a Macbook Pro late 2011. The hard disk doesn't have a drive letter or the drive letter conflicts with other disks. Time came to swap the disks over - ie put the 750 inside the MacBook and take the 500GB out. So, I ordered a new cable. This is because all you need to do is connect them to your Windows PC and it will show up with ease. Seems after awhile of plugging in and out the HDD, the connector gets to not make much/some contact with the drive. Why You Can't See Hard Drive on Mac? One of the issues reported by many Mac OS X users in Apple support communities consists of their external hard drive not showing up on Mac – neither in disk utility nor in devices. Note: If you're running macOS Mojave or earlier, iBoysoft Data Recovery for Mac will launch immediately when your Mac boots up. Reply . To my surprise it was detected by the OS when doing an "Option" boot and I was able to load OS X. Go figure. Got a new cable - same problem. https://www.youtube.com/watch?v=Amg5w0rl... this wonder like a charm. They are equally easy to utilize. The instruction was to insulated the cable from rubbing against the aluminum case by putting a few strips of electrical tape beneath the cable, on the case where the flat SATA cables run. ). The most recent time, the new cable did not fix the problem. In Windows, my drive is not displayed in (My) Computer/This PC or Windows Explorer. First thing I would do is check all the connections on the hard drive data cable, then I would replace it. 08/25/2015 by I tried with an older rotating hard drive, connected it using the flex cable, and it did boot and worked as it should. instruments: masking tape(blue or white), a small flat screw driver, and scissors. I have yet to experience a SSD that is not recognized in a 2010 MBP. I've tried the drive in all 4 of my internal bays and looked to see if shows up under BootCamp but no luck yet. Reboot your Mac — a simple on and off is sometimes all it takes. Try connecting the hard drive to a different USB port — it could be a hardware issue. Enable visibility of external hard drive 3. 4. The hard disk has a partition issue. 10/06/2014 by 2.Checked a different seagate external hard drive on the Mac pro notebook and the external drive is not showing up in the finder or on desktop. It only makes good contact with some HDDs. Could of course be a defective SSD. I haven't used it in a few months, but now when I plug it in, it doesn't show up anywhere. Device incompatibility. If you can see them with correct storage capacity by the command line "diskutil list", you need to recover lost data from the internal hard drive with iBoysoft Data Recovery for Mac to avoid data loss and then fix a split fusion drive as soon as possible. A hard drive not showing up is one of the most frequent issues that users encounter and it is frustrating. They are ideal for work and storing important items. Also, if your hard drive is damaged severely and it doesn’t show up on the newly install macOS then you have to take data recovery services to get your data back. My hat is off to you...thank you, Thank you, THANK YOU! This problem persisted even after the update of OSX Yosemite, Sierra or High Sierra. Data recovery from corrupted internal hard drive. But, after reading thread I realized that I needed to restart nvram as well. External Hard Drives are becoming extremely common. Although Disk Utility should always be tried first, a Mac’s Terminal can be used to format the drive in these cases. I belive there is some problem with the logic board.. Any lights?? Safekeep all of your music, photographs, films and more. External Hard Drive Not Showing Up On Mac? Choose the Apple menu > Restart. For this reason, lots of individuals tend to store their important items on Hard-drives so that they would be able to access them later on. Recover Data from Hard Drive Not Showing up. Recover data from Mac internal hard drive. Step 6) Let the software complete the recovery process. Test the hard drive on a PC — it could be formatted for PCs and not readable on Macs. Open finder from Dock. on the video i watched to replace it, it showed the cable just sat not clipped. @techsmart1. @lu423philly. I will order a new cable just in case...but this enabled me to get a CURRENT time machine back up. Recently, some OWC customers have reported experiencing a situation where their new SSD will not show up in Disk Utility in High Sierra. The tape goes on the hard plastic connector (that connects to the drive) at the end of the cable. Hit on the "Apple" icon available on the top left corner of your Mac screen and then opt for the "Restart" option from the appearing drop down menu. Frustrating to say the least, way to screw things Apple ;), Please start a new question. If it works, you should see a FireWire icon bopping around on the target machine's display. Cable worked, and scissors in 2010 I have changed the flex cable the! To a Windows PC and it would be split into an extra SSD and a lot of wasted reinstalling..., then select your external hard drives do not show up on your system prevent... So I get the Apple sign if the cable is that internal hard drive not showing up mac an hard! Enabled me to get a CURRENT time machine back up your Mac device, after,. 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