Have you tried to take out one stick of RAM, clear the PRAM and boot the system?
Shut down the Mac and disconnect the power from it.
Open the machine.
Change the RAM configuration. Add or remove RAM so the amount is altered.
Close the machine and plug it back in.
Start up the machine and reset the PRAM by holding down the following keys while it boots: Command+Option+P+R You must hold these keys until you hear 3 chimes.
Once the machine starts you can then shut it down, reinstall the RAM, and boot the system.
@CygnusX1, I have a utility in the blog
HERE
that can be used to deobfuscate the passcode on 2010 macs and earlier from the dump which can be pulled directly from within OSX using flashrom.
@Med_Outgha, The EFI passcode for your Mac is "kayk1310". Enjoy
Hi
i have iMac A1312 EMC: 2390 Mid 2010 with efi passcode. i saved the dump from the efi/eeprom of my imac can you please get the code/password from dump or get me a clean dump please?
Attachments:
Last edit: 7 years 6 months ago by RPBOY. Reason: attachment
SOMEHOW THIS IS NOT WORKING FOR ME I REMOVED 2 OF THE 4 RAMS AND TRIED THAT METHOD BUT MY MAC TURN ON NORMALLY ALL THE TIME. I HAVE NORMAL KEYBOARD SO I AM TRYING WITH ALT+CTRL+P+R AND CTRL+ALT+P+R NOT WORKING FORME. ANY HELP
after procedure is done if os x is locked
you will need to boot in single user mode to remove the AppleSetupDone
then u can create new user to log in to os x.
I have tried win+alt+p+r and single user mode but my imac boots normal all the time. The Only thing working is when i press alt it goes to efi password and i don't press any key while booting it boots to os which also has password.
It is driving me crazy.
It doesn't matter the order in which you press the keys, what matters is that you hold them all down simultaneously and continue to hold them all until the machine reboots.
If booting with ALT brings you to the EFI lock screen, try booting with CMD-R (win-r) and see if that takes you to the lock screen as well. That will at least verify that your mac is recognizing the cmd key
Win + R also brings the password screen. But win +alt+R+P does not reset pram.
Anyway i learned something about keys. Thanks
And also the code somebody suggest out of my efi dump worked.
This website uses cookies to manage authentication, navigation, and other functions. By using our website, you agree that we can place these types of cookies on your device.
You have declined cookies. This decision can be reversed.
You have allowed cookies to be placed on your computer. This decision can be reversed.
This website uses cookies to manage authentication, navigation, and other functions. By using our website, you agree that we can place these types of cookies on your device.