I have a Retina macbook Pro late 2012 running OS X High Sierra version 10.13.4. I have decided to upgrade my SSD because 120GB is not enough, therefore, I bought a JetDrive 720 SSD (240GB) from Amazon to perform a DIY upgrade.

It should be pretty straight forward but I am having the following error when I try to clone the original drive into the new drive.

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I have followed the instructions from the manufacturer but it simply isn't working. Instructions: Transcend JetDrive 720 Manual

I suspect that the issue is with APFS.

  • 1
    Using Disk Utility, can you partition and erase the drive?
    – Allan
    Commented Jun 18, 2018 at 22:14
  • 1
    I’m currently attempting one option: I’ve downloaded Carbon Copy Cloned software and so far it appears to be cloning the Macintosh HD to the JetDrive. If it doesn’t work i’ll Try to partition.
    – JCassio
    Commented Jun 18, 2018 at 22:35
  • 1
    It appeared to work flawlessly!
    – JCassio
    Commented Jun 18, 2018 at 23:32

1 Answer 1


The solution was to download Carbon Copy Cloner software because apparently Disk Utility and APFS created a bug after High Sierra update. Just connect your JetDrive or any other drive, follow the prompts and press "clone". That should work for everybody.

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