![]() Same every time, despite no error message." I've done this several times, and the Boot ROM Version is still the ![]() (screen also says "If these instructions appear on your screen again, Updater screen appears with instructions on installing the firmware and when it's finally restarted, the same a little status barĪppears on the first white screen at startup. "I downloaded the latest firmware updater (1.4) to upgrade my Boot ROMįrom 01 to 07, and everything seemed fine atįirst. "I get the error message 'unexpected error occurred (0) ' unable to upgrade firmware" my Mac is an iMac 20" C2D Late 2006 and my actual firmware revision is 03."" Alternatively, you can eliminate USB devices from your chain selectively, checking for resolution of the performance problems.įeedback? USB issues Converging with the aforementioned, a number of users are experiencing other significant USB device related issues after the EFI firmware updates. As suggested in that piece, make sure that your devices' firmware versions are up-to-date. If you're experiencing similar issues, you might want to run through the list of fixes suggested in this USB troubleshooting tutorial. Finder sometimes locks up when copying files to/from external disks." - Chris Santavy External drives take longer than usual to attach. "With USB/Firewire devices attached the Mac will take either a very long time to boot or will need all devices removed (including the new style keyboard/mouse) before it will start.Maybe USB problem? I have a large number of USB devices, but they worked fine with the previous version" -Markus "For some reason, the machine seems to 'stall' for up to 5 seconds when I change between certain applications.Since installing I have not gotten my time below 90 seconds!" - Matt Green I was just under 30 seconds before everything was up and running. Before the EFI Firmware update my startup times were very fast and all four programs launched quickly. "My boot times after installing the EFI firmware update are about four times longer I have four programs launch at startup: iTunes, Mail, Activity Monitor and Quicksilver.The computer is running so painfully slow now." - Rick ![]() "Just installed version 1.4 on my MacBook Pro 2.16 15" Core 2 Duo.You can use the links above to download the firmware update for your specific Mac, but you can also find the update in Software Update. This update fixes several issues to improve the stability of Mac mini (Mid 2011) computers and is recommended for all users.īoot ROM or SMC Version Information: MM51.0077.10 About Mac mini EFI Firmware Update 1.6 ( 4.08MB Download).This update fixes several issues to improve the stability of iMac (Early 2011) computers and is recommended for all users.īoot ROM or SMC Version Information: IM121.0047.1F About iMac EFI Firmware Update 1.9 ( 3.07MB Download).This update fixes several issues to improve the stability of MacBook Air (Mid 2011) computers and is recommended for all users.īoot ROM or SMC Version Information: MBA41.0077.0F About MacBook Air EFI Firmware Update 2.4 ( 4.06MB Download).This update improves the reliability of booting from the network, addresses an issue that can prevent HDCP authentication after a reboot, and resolves an issue with boot device selection when a USB storage device is hot-plugged.īoot ROM or SMC Version Information: MBP81.0047.27 ![]() This update fixes several issues to improve the stability of MacBook Pro (Early 2011) and MacBook Pro (Late 2011) computers and is recommended for all users.
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