From Startup Manager to Internet Recovery on Intel Macs, and how to engage each of those in an M1 Mac. With comprehensive diagrams.
diagnostics
M1 Macs don’t use that warren of startup key combinations, but a logical structure of choices, mostly when starting up in Recovery Mode. Here are the full details.
First update it to 11.0.1. Here are details of the problems which can arise and how to solve them, from unenrolling from betas to using Configurator to Revive an M1 Mac.
Recommended for all users, particularly those running TM in Catalina, where it analyses strategies used to determine what to back up.
What they are, how they’ve changed, how to work out what went wrong, and how to deal with them. No Mac should ever experience a single panic.
Diagnostic, Recovery, Safe, Startup Manager, Verbose, reset SMC/NVRAM, firmware restore, Target Disk/Display, Single-User (SUM) in outline.
How to check your Mac’s hardware, interpret the results, deal with problems, and tackle tricky intermittent faults.
From hardware diagnostics to pmset and resetting the SMC, all you need to know about diagnosing wake and sleep problems.
Had my Mac frozen, or was it just very busy running tests on the boot disk? When I forced it to restart, what did the log reveal?
What should you do when you try to restart in Diagnostics Mode and can’t? And how to check and restore a Recovery partition.
