I have not been able to run Apple Diagnostics
I have not been able to run Apple Diagnostics. How do I run a hardware diagnostic?
[Re-Titled by Moderator]
MacBook Pro 15", macOS 10.15
Question marked as
Have you tried the detailed instructions on performing Apple Diagnostics from here?
• How to use Apple Diagnostics on your Mac - Apple Support
https://support.apple.com/en-us/HT202731
These are standard for Macs built after June 2013. (For before, use Apple Hardware Test.)