EFI upgrade instructions are given here.
If System Settings does not show OEM updates, go to App Store and search Sequoia (or newer macOS).
If OEM update fails, make sure SecureBootModel is Disabled and/or reset NVRAM and perform the update.
2024-12-03
Supported macOS Version: 10.15, 11, 12, 13, 14, 15
Intel Wi-Fi is NOT supported on macOS 15 (Sequoia). Try itlwm + HeliPort or Ventura kext + OCLP (risky)
Upgrade
- Update
OpenCorev1.0.3 - Update
Liluv1.7.0 - Update
VirtualSMCv1.3.5 (up to acidanthera/VirtualSMC@4be2a60) - Update
AppleALCv1.9.3 - Update
WhateverGreenv1.6.9 - Update
VoodooI2Cv2.9.1