Summary: A Seagate external hard drive or Seagate Backup Plus can occasionally not be showing up/recognized/detected on Mac. If you are facing this issue, don't worry! From this post, you will learn about possible reasons and several solutions.
Sometimes, when intending to copy files from the Seagate hard drive, you will find it not showing up/recognized/detected on macOS Mojave/High Sierra/Sierra. Today you're going to see the step-by-step tutorial to solve this issue.
Seagate Technology is an American data storage company. Since it is founded in 1978, Seagate has produced over 2 billion hard disk drives, including external hard drives, internal hard disks, and SSD. What is worth mentioning that Seagate has dominated the HDD market as it offers an extensive range of HDDs for home and office use. One of the most popular Seagate products is Seagate Backup Plus for Mac, which lets you easily back up and transport files, music, photos, videos and more on Mac computers.
Although Seagate hard drive offers high quality, it also experiences certain issues. Here is a real example:
Hi all, my Seagate Backup plus external hard disk was working fine. Suddenly it won't show up in my MacBook Pro. When I plug in the USB cable into the computer, the HDD starts to spin, but it never shows up in the Finder or on the desktop. If anyone has any useful information, that would be greatly appreciated. Thank you!
Have you encountered the similar situation on Seagate hard drives or Seagate Backup Plus for Mac? Didn't back up important data? The good news is that the problem can be fixed and all data saved on the inaccessible drive can be recovered. Just do follow the clear instructions below.
When your Seagate external hard drive not recognized on Mac, you can try the following ways to troubleshoot this issue.
Solutions 1: Check if Seagate hard drive is connected to your Mac well
One of the main reasons why Seagate Backup Plus for Mac is not working on Mac is the drive is not connected properly and it isn't receiving enough power. Thus, please confirm that the external hard drive is properly connected to a sufficient power source, not wobbly or loose.
Solution 2: Use another USB cable on your Mac
Perhaps the problem is caused by a damaged data cable. You'd better try using a different USB cable with the Seagate hard drive to see if that fix Mac not recognizing the external hard drive.
Solution 3: Check the USB port on your Mac
On the subject of USB port, you should make sure the USB port on your Mac is not at fault. Try plugging the Seagate hard drive into a different USB port. If you only have one USB port, you can connect another external device to the USB port to see if it works well.
Solution 4: Try plugging the Seagate hard drive into another Mac
To leave out the problem with your Mac, you can plug the Seagate hard drive into another Mac. If the drive works as normal, you should blame your Mac computer rather than the Seagate hard drive. In this case, please ask for help from the local repair center If the Seagate external hard drive still can't be detected on Mac, there is something wrong with the drive.
Solution 5: Try plugging the Seagate hard drive into a PC
Chances are that the Seagate hard drive is encrypted by Windows BitLocker and can't be read on Mac. You can try plug the drive into a PC to see whether it is a BitLocker encrypted drive or not, If the answer is "Yes", you can decrypt the drive on a PC, reinsert it on Mac and then you can see the drive listed in Finder.
Solution 6: Update Mac drivers
Drivers are software to help your system communicate well with its hardware devices. If your system has outdated drives, then the system doesn't know how to use USB devices. So you should update it regularly. To update Mac drives, launch the Mac App Store, click the "Update" tab on the top and tick "Update All".
Solution 7: Set to show Seagate hard drive on Desktop
There are times when your Mac computer is not set to show up on Desktop. Fortunately, you can enable this function in Finder preference.
Step 1: Go to Finder > Preferences > General tab.
Step 2: Select "External disks" under "Show these items on the desktop" and then our connected external hard drive will appear on the desktop.
Solution 8: Repair the corrupted Seagate hard drive in Disk Utility
If the Seagate hard drive can be seen in Disk Utility, your drive still can be recognized by the Mac operating system, but the drive might have some file system corruptions. Don't worry! macOS Disk Utility has a built-in feature called First Aid, which can be used to check and repair file system errors.
Step 1: Launch Disk Utility, which is in the "Utilities" folder of your Applications folder.
Step 2: Click "View" in the top menu bar. Then select "Show All Devices".
Step 3: In the left pane, highlight the corrupted Seagate hard drive.
Step 4: Click "First Aid" in the top center.
Step 5: Select Run to perform hard disk diagnostics and fix any issues.
Solution 9: Recover data and then reformat the corrupted Seagate hard drive
If Disk Utility can't repair the external hard drive, the last way to reformat the corrupted Seagate hard drive. Although reformatting can fix almost all logical problems on disks, it will erase whole data on disks. So before reformatting, if you have important files on the Seagate hard drive, you'd better recover data at first.
Step 1: Recover data from corrupted Seagate hard drive with free Mac Data recovery software
iBoysoft Mac Data Recovery is a free Mac data recovery software that can recover data from corrupted, unmountable, unreadable, unrecognized, inaccessible hard drive, external hard drive, USB flash drive, SD card, memory card, pen drive, etc. on macOS Mojave 10.14/High Sierra 10.13/Sierra 10.12/10.11/10.10/10.9/10.8/10.7. It supports to recover lost documents, photos, audios, videos, emails on APFS, HFS+, HFS, exFAT, FAT32 drive.
1. Download and install iBoysoft Mac Data Recovery.
2. Launch this program. Select the Seagate hard drive that not showing up on Mac and click "Next". The program will start scanning this Seagate hard drive for recoverable files.
3. After the scanning process finishes, you can click the found files and preview.
4. Choose what you want to get back and click "Recover".
Step 2: Erase the Seagate hard drive that not showing up on Mac
1. Go to Applications > Utilities > Disk Utilities.
2. Click "View" in the top menu bar. Then select "Show All Devices".
3. Select the corrupted Seagate hard drive and click Erase on the top.
4. Follow the instructions to finish the erase/format process.
Solution 10: Send the Seagate hard drive to a local technician
If the external hard drive is not showing up in Disk Utility, unfortunately, the drive must have some hardware problems. At first, you can try iBoysoft Mac Data Recovery. Even though the Seagate hard drive can't be recognized by your Mac machine, there are chances that it can be detected by iBoysoft Mac Data Recovery. Just download and install it.
If iBoysoft Mac Data Recovery also can't recognize the Seagate hard drive, the drive has been damaged physically. You should send it to local repair shops as soon as possible.
Normally, when we say Seagate hard drive not showing up on Mac, it means Seagate hard drive can't be seen in Finder or Disk Utility. Why does this issue happen? Here are some common reasons:
- Seagate hard drive isn't connected properly.
- Mac isn't set to show up Seagate hard drive on the desktop.
- The file system of Seagate hard drive is unrecognized or corrupted.
- Outdated Mac drivers.
- The disk is not formatted to a supported macOS format.
- Hardware problems.
After trying those solutions above, hope you have fixed the Seagate hard drive not showing up on Mac. Moreover, if your USB drive or SD card is not showing up on Mac, you can also follow this guide.
If you have any suggestion to get rid of Seagate hard drive not showing up issue or experience any question when using iBoysoft Mac Data Recovery, please send email to support @iboysoft.com.