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I have 2 Mac books pro 15 with touch bar one from 2017 one with 2019. One I start it up in Target mode, one in normal mode. I connect them via original USB-c cable but I cannot see the drive on the normal boot laptop
MacBook Pro with Touch Bar
It either laptop are running macOS 11.x Big Sur, then you cannot use USB in Target Mode (thanks Apple) so you would need to use a Thunderbolt cable (lightning bolt on the connectors). See this Apple article for details:
Transfer files between two Mac computers using target disk mode - Apple Support
Edit: changed the OS versions to be correct with the article. Thanks @Grant!
It either laptop are running macOS 11.x Big Sur, then you cannot use USB in Target Mode (thanks Apple) so you would need to use a Thunderbolt cable (lightning bolt on the connectors). See this Apple article for details:
Transfer files between two Mac computers using target disk mode - Apple Support
Edit: changed the OS versions to be correct with the article. Thanks @Grant!
The USB cable for charging the computer is a Charge-ONLY cable. Its USB data conductors are only good enough to support a keyboard, nothing faster.
If I were King, I would color it orange so as not to mistake it for a "real" data cable.
andreifromdubai wrote:
Oh,
so the USB-C cable used for charging the laptop is not good. I will order one thunderbolt 4 cable.
To much confusion with this protocols
Agreed. The Apple USB-C charging cable only handles up to USB2 so transfers would be extremely slow anyway. It doesn't help that Apple changed Target Disk Mode for macOS 11.x+ either.
good article!
EDIT: took back my bad words for HWTech
Oh,
so the USB-C cable used for charging the laptop is not good. I will order one thunderbolt 4 cable.
To much confusion with this protocols
target mode over USB-c not working
