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USB DUMPER FOR MAC HOW TO
USB DUMPER FOR MAC MAC OS
USB DUMPER FOR MAC INSTALL
USB DUMPER FOR MAC UPGRADE
USB DUMPER FOR MAC CODE

Enter your Apple ID and password if you're asked to, though you might not be.

USB DUMPER FOR MAC INSTALL

Click on the drive on which you wish to install macOS.

USB DUMPER FOR MAC HOW TO

How to reinstall macOS while in Recovery mode The next step is to reinstall macOS. If you're running macOS High Sierra on a Mac with an SSD, your choices will be some form of APFS.

Click on the format you want to use for your drive.

Click on your startup disk in the Disk Utility sidebar.

If you want the content on your Mac to stay intact, skip to the. How to erase your startup disk in macOS Recovery mode If you need to start completely fresh, then you'll want to erase your startup disk using Disk Utility. First Aid will run, checking the health of your Mac's drive. It should be the drive at the top of the sidebar if there are multiple drives.

Click on your Mac's startup drive in the Disk Utility sidebar.

Click Disk Utility when in macOS Recovery.

You'll need to use Disk Utility to do that. How to check your startup disk with Disk Utility in macOS Recovery mode The first thing you'll want to do is make sure your Mac's startup disk is healthy.

Press Shift - Option - Command - R to install the version of macOS that came with your Mac, or the version closest to it that's still available.

USB DUMPER FOR MAC UPGRADE

Press Options - Command - R to upgrade to the latest version of macOS that's compatible with your Mac.

Press Command - R to install the latest version of macOS that was installed on your Mac without installing a later version.The combination you choose will determine which version of macOS will be installed on your system when you select Reinstall macOS. You can enter Recovery by pressing certain key combinations. Entering macOS Recovery macOS Recovery has tools at its disposal that allow you to diagnose problems with your Mac's hard drive, reinstall macOS, and restore from a Time Machine backup.

USB DUMPER FOR MAC MAC OS

With the payload extracted we can finally try to find where to start reversing.Is there anyway i can still dump my UMD Game discs on Mac OS X? (i've also tried UMD DAX DUMPER, that worked under 3.50 HEN, but not. You will need UEFITools newengine branch if you want support for NVRAM partition contents (which is super useful feature, thanks Nikolaj ). The great UEFITool can easily extract contents from dumps and SCAP (to mass extract all the files use UEFIExtract utility instead).

USB DUMPER FOR MAC CODE

So if this is true then how is someone selling what appear to be fully working SCBO files We need to dig deeper and reverse the EFI code responsible for processing this file. It would be a surprise if this kind of check wasnt implemented and anyone could modify the SCBO contents. This provides us with another bit of information that there is some kind of integrity check on the SCBO contents.

The computer will process the file and reset the system, but the password isnt reset. If we set a firmware password on a test Mac, generate the necessary string, and modify the SCBO accordingly, nothing will happen. I know this because I had already reversed Apples Firmware Password Utility and observed its communications with the kernel extensions that set the EFI NVRAM variables. To obtain the necessary information, you must hold SHIFT CONTROL OPTION COMMAND S on the firmware password prompt screen and a string will be generated.

The rest of the string and binary data that follows are unknown for now. This information can be verified because part of this string can be found in the motherboard of each Mac (my sample is only composed of MacBooks but I guess iMacs and others will contain the same information). The SCBO string is clearly visible in the first four bytes, which is a magic number ( 0x4F424353 ). The sample file can be downloaded here SCBOoriginal.zip. Understanding how SCBO files work in the first place was also intriguing. If this were true, it would imply that Apples EFI contains a significant vulnerability. Upon my return from SyScan360 Singapore, I needed a new research direction to kickstart my brain back into work, and this fit the bill. 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 dont have the original sales receipt of this specific Mac, I assume this option isnt possible, since anyone with a stolen Mac could get the password reset. The normal process workflow is to first contact Apple support.