Apple iMac EFI Firmware Update

Apple iMac EFI Firmware Update 2.0

Free
For all iMac (late 2012) models.
 
2.0 (See all)

This update is recommended for all iMac (late 2012) models. This update contains general performance fixes pertaining to sleep and Thunderbolt, and improves compatibility when using the 5GHz band in Wi-Fi. Boot ROM or SMC Version Information: After Update is complete:
Build version: 010A.05
ROM version: IM131.88Z.010A.B05.1211151146.

Info updated on: