How to fix Seagate Backup Plus drive not mounting/working on Mac?

Posted by Katrina to Mac Data Recovery on February 8th, 2018

This article will give you solutions to fix the Seagate Backup Plus not mounting, or Seagate Backup Plus not working issue on Mac. To prevent unexpected data loss, you'd better at first download free data recovery software, like iBoysoft Mac Data Recovery, and recover data from the not working Seagate external hard drive.

A large number of users have reported that they were unable to mount Seagate Backup Plus drive on Mac computers, or Seagate Backup Plus is unreadable on Mac. In fact, the Seagate Backup Plus drive not mounting/working on Mac issue is very common among Mac users. Let's go ahead to the solutions to fix the Seagate Backup Plus not mounting/not working on Mac issue.

How to fix Seagate Backup Plus not mounting, not working on Mac?

Seagate Backup Plus external hard drive is often used to back up important files. It's so urgent to fix Seagate Backup Plus not mounting or not working problem on Mac.

Solution 1: Have some basic checks

Sometimes, the Seagate Backup Plus drive not mounting/not working on Mac is due to bad USB port or cable. Thus, once you encounted the Seagate Backup Plus drive stopped working problem, you can firstly do some routine checks as below.

1. Check whether the cable of Seagate Backup Plus drive is connected properly to our Mac.

2. Try a different USB port or cable to see whether it's the USB port or cable's issue.

3. Check whether the Seagate Backup Plus external hard drive is powered properly.

4. Connect the Seagate Backup Plus drive to another computer, such as a Windows PC, to see if it works on that one.

Solution 2: Repair Seagate Backup Plus drive via First Aid

You can try to fix the unmountable or not working Seagate Backup Plus external hard drive in Disk Utility by following the steps as below.

Step 1: Open Disk Utility.

Step 2: Select the Seagate Backup Plus external hard drive from the left window.

Repair Seagate Backup Plus drive via First Aid

Step 3: Click First Aid on the top.

Step 4: Click Run to perform hard disk diagnostics and fix the not mounting/not working issue.

Solution 3: Fix the not mounting/working Seagate Backup Plus drive by reformatting

If First Aid failed to fix the Seagate Backup Plus drive not mounting/working problem, the drive might have some serious errors that is beyond its reparation capability. If that is the case, you'd better recover data from the unmountable/not working Seagate Backup Plus external hard drive as soon as possible.

iBoysoft Mac Data Recovery is free Mac data recovery software that can recover data from formatted drives, recover data from unmountable drives, recover data from corrupted drives, recover deleted/lost partitions, etc. It's compatible with macOS Mojave 10.14/High Sierra 10.13/Sierra 10.12/10.11/10.10/10.9/10.8/10.7.

Step 1: Download and install iBoysoft Mac Data Recovery on Mac.

Step 2: Launch iBoysoft Mac Data Recovery.

Recover data from not mounting/working Seagate Backup Plus external hard drive

Step 3: Select the Seagate Backup Plus and click "Next" button to scan for all the lost data.

Step 4: Preview the searching results, choose files you want to get back, and click "Recover" button.

Step 5: Launch Disk Utility from Utilities and select the unmounted drive.

Step 6: Click Erase on the top of the window, and follow the onscreen steps to reformat it.

Solution 4: Seek help from the local data recovery company

If unfortunately, you can't reformat the Seagate Backup Plus, it must have physical issues. In this case, you have to look for help from a local data recovery company.

Conclusion

No matter what caused Seagate Backup Plus not mounting/woring on Mac issue, logical problems or physical damages, the most important thing is to back up important data. If no backups have been made, you can turn to iBoysoft Mac Data Recovery to recover data easily and quickly.

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