Upon my return from SyScan360 Singapore, I needed a new research direction to kickstart my brain back into work, and this fit the bill. Since there was (stil holds true) virtually no information about the SCBO contents, this aroused my curiosity but I never followed up until now. There are videos (in Portuguese but you can watch the whole process) of people claiming this works, and even some claims about an universal SCBO that unlocks multiple Macs. Things got more interesting when I found a website that allegedly sold the SCBO files – just send them the necessary hash (more on this later), pay USD100, and get a working SCBO file in return. Since I don’t have the original sales receipt of this specific Mac, I assume this option isn’t possible, since anyone with a stolen Mac could get the password reset. The normal process workflow is to first contact Apple support. My preliminary research found references to a “magical” SCBO file that could be loaded onto a USB flash drive and booted to remove the password. My original goal when I started poking around Apple’s EFI implementation was to find a way to reset a MacBook’s firmware password. This is just an article that introduces the steps to follow, in order to successfully unlock you need to pay more. You need to have USB and other apple computer available to create USB

If you still see digit 'passcode' lock after these steps at startup, reset the NVRAM by holding down Command-Option-P-R while restarting the computer.Īfter EFI is removed use your own Bootable OS X and install it.

You should see the lock symbol for a moment, and then the computer should restart to the Startup Manager.

Turn on the computer while pressing and holding the Option key.

Insert the Flash drive into the computer.Press and hold when you see the lock screen: If you cannot remember the firmware password for your Mac, schedule a service appointment with either an Apple Retail Store or an Apple Authorized Service Provider.EFI iCloud Firmware SCBO Only Apple retail stores or Apple Authorized Service Providers can unlock these computers protected by a firmware password. You should see the lock symbol for a moment, and then the computer should restart to the Startup Manager.

Turn on the computer while pressing and holding the Option key. Insert the Flash drive into the computer.

Intel-based Macintosh computers can be protected by firmware passwords as well. The firmware in an Intel-based computer uses Extensible Firmware Interface (EFI) technology.

Scbo mac unlock