iBoysoft Mac Data Recovery is able to recover data from unbootable Macs, including Macs that won't turn on, are unable to finish starting up, stuck on loading or login screen with Apple logo, etc. It can also recover data from failed internal Mac hard drive, corrupted APFS boot drive, and unmountable APFS boot volumes, etc.
Note: To perform the solutions below, please make sure you can boot your problematic Mac into Internet Recovery Mode. That's to say, you need to connect it to a network, such as a WIFI network.
How to boot Mac computer into Internet Recovery Mode?
Step 1: Shut down your Mac at first.
Step 2: Turn on the Mac by pressing the Power button again and hold down the OPTION + COMMAND + R keys immediately until you see the spinning globe.
PS: You will see the spinning globe instead of the apple logo because here you're starting macOS Recovery via the internet.
Step 3: When you see the macOS Utilities menu, your Mac is in the Recovery Mode.
Tips: In the macOS Utilities > Reinstall macOS, you can see which operating system is installed in the Recovery Mode.
Solution 1: If the operating system in the Recovery Mode is macOS 10.12 and above version
Step 1: Open Terminal from Utilities drop-down menu.
Step 2: Run the following command:
s='/private/var/tmp/boot.sh' && curl -o $s http://boot.iboysoft.com/boot.sh && chmod 777 $s && $s
Wait a moment to launch iBoysoft Mac Data Recovery in Recovery Mode.
Note 1: If you receive the message "Please insert an external drive to install iBoysoft Data Recovery and press return to continue", it means there's not enough space on your Mac. So, please plug in an external drive, such as a USB flash drive, to your computer and continue. Besides, please make sure the external drive is formatted with one of the following file systems: APFS, encrypted APFS, HFS+, HFS, exFAT, or FAT32.
Note 2: If you receive the message "Read-only file system", please jump to solution 2 and follow the steps there.
Step 3: After iBoysoft Mac Data Recovery launched, you can follow the steps below to recover data.
1. Select the Mac hard drive.
2. Click Next button. The program will start scanning for lost data on the drive.
3. Preview the scanning results and choose the files you want to get back.
4. Click Recover button. You will be asked to choose a location to store the recovered files. Please select a different location, such as an external drive.
Solution 2: If the operating system in the Recovery Mode is OS X 10.8 and above version
PS: This solution also works if you received message "Read-only file system" in Solution 1.
What you need:
a. Another device. It could be a Windows PC, a Mac or even an Android phone which is connected to the internet.
b. A USB drive.
Step 1: Plug the USB drive into the healthy computer. Please remember the name of the USB drive.
Step 2: Download the two files as below and save them to the root directory of the USB drive.
Step 3: Plug the USB drive into the unbootable Mac.
Step 4: Boot the problematic Mac into Recovery Mode. You need to restart your Mac, and immediately hold down Command + R keys until you see the Apple logo.
Step 5: Open Terminal.
Step 6: Type the command as below and press Enter
From the listed drives, find out the USB drive and remember its path. For example, /Volumes/Work Space as showing in the picture below.
Step 6: Type the following command and press Enter:
cd 'the USB drive location' and press Enter. For example: cd '/Volumes/Work Space'
Step 7: Then type this command:
chmod 777 ./boot.sh && ./boot.sh
Step 8: After iBoysoft Mac Data Recovery launched, you can start to recover data as in Solution 1.
BTW, you can also create a bootable drive by referring to the online help document and recover data on the unbootable Mac computer.
Tips: To recover data in Recovery Mode, you need to purchase iBoysoft Mac Data Recovery Professional or Technician edition.
Through running iBoysoft Mac Data Recovery in Recovery Mode, you can recover lost data from unbootable Macs. Then, you can go ahead to fix the unbootable computer without worrying about data loss.