Apple 27 SMC Update

Apple 27 SMC Update questions & answers

For 27" iMacs.

Alternative downloads

MacBook Pro SMC Firmware Update
1.8
FREE
This update is recommended for MacBook Pro (mid 2012) models.
Mac Pro SMC Firmware Update
2.0
FREE
Recommended for all Mac Pro (late 2013) models.
MacBook Air SMC Update
2.0
FREE
Addresses and issue that causes battery drain various MacBooks.