How to reset them, and what they do. Includes coverage of the SMC functions in T2 chips, and how to reset them too.
Diagnostic, Recovery, Safe, Startup Manager, Verbose, reset SMC/NVRAM, firmware restore, Target Disk/Display, Single-User (SUM) in outline.
Important info about resetting the NVRAM with a firmware password, and new procedures for resetting the SMC in Macs with T2 chips.
Safe mode, or Recovery? Which type of Recovery? How to engage all those useful modes at startup, and when shutting down.
All the useful key combinations, arranged by function rather than keys.
“My iPhone is dead.” It came as a surprise as we had just got home from a social […]