I sure hope Apple provides an answer soon. With these brand new MBPtb’s, almost nothing is working, trying different brands of disks, different cables, etc all through Apple’s own adapters or with drive manufacturer’s USBc-USBc and/or Apple’s cable. Thanks Drew I am for many years using CCC, SD! and TM for backups, successfully with other machines. These new models require Apple to use specialist tools to access the soldered on storage if it fails. Time Machine is OK, but one backup is not enough (as this issue is demonstrating). If you have important data use Carbon Copy Cloner, SuperDuper! or even Disk Utility to make sure you have a copy on an external disk. GRRRR! Apple! help! Cannot backup machine!

Same issue on TWO brand-new 15″ MBP touch bars. Has to be Hardware., albeit Apple insists it’s s/w The Guy I spoke to at AC recommended to try beta OS. Has anyone else experienced this? BTW, I was able to reproduce the reboots using two different external drives from different manufacturers I was able to copy files to the external drive without issue.Ĭonsidering that this seriously cripples the speed I expect from the USB-C ports, this is not acceptable. I confirmed the drive was then connected to the USB 3.0 Bus at 480 Mbps.

I then connected the exact same drive using a USB-C to USB-C 2.0 cable. I was able to reproduce this time and time again. Copying large files (video) to the drive caused the laptop to freeze and then reboot. Checking the System Report, I confirmed the external drive was connected to the USB 3.1 Bus at 10 Gbps. The drive was connected using the Apple USB-C adapter to a USB 3.1 cable attached to the drive.

Tonight, I was copying files to an external drive on my Late 2016, 15″ Macbook Pro. Using USB 3.1 storage device causes reboot (Dec 7th) He also provided us with some excerpts from the Apple support forums showing that the external hard drives issue isn’t just his problem. UPDATE ( 16:50EST): Our original source has gotten back to us to tell us that he has tried a Lacie USB-C drive that has also crashed his MacBook Pro. UPDATE ( 17:05EST): Apple has addressed this issue in macOS 10.12.2 beta5, please read more here. I have read online that some users have had trouble getting their Time Machine backup to work on their new MacBook Pro and this hard drive issue could be the culprit. One of our readers contacted us to let us know that his brand new MacBook Pro shut down and rebooted any time he tried to use his external hard drives. External hard drives are an essential tool for many users and a lot of us have done a Time Machine backup to our external hard drives. Now we have at least one user who is experiencing issues with certain external hard drives. We already know that users have been complaining about battery issues and GPU problems. When it rains it pours and that’s exactly what seems to be happening for Apple’s new MacBook Pro.

External hard drive apple macbook pro