a. Boot into recovery using command-R during reboot, wipe the harddrive using Disk Utility, and select reinstall macOS
b. Initial installation will run for approximately 1 hour, and reboot once
c. It will then show a remaining time of about 10-15 minutes
d. When it reboots again, be sure to press command-R to boot into recovery and continue with Main procedure
Boot to Recovery Mode by holding command-R during restart and continue with Main procedure
- Open Utilities → Terminal and type
$ csrutil disable
$ reboot
-
Hold
command-Rduring the reboot to enter Recovery Mode again -
Enter Disk Utility, and mount the
Macintosh HDvolume (or whatever your main volume is named). (It might already be mounted.) -
Exit Disk Utility, open Utilities → Terminal, and type
$ cd "/Volumes/Macintosh HD/System/Library"
$ mkdir LaunchDaemons.disabled LaunchAgents.disabled
$ mv LaunchDaemons/com.apple.ManagedClient* LaunchDaemons.disabled/
$ mv LaunchAgents/com.apple.ManagedClient* LaunchAgents.disabled/
$ cd ../../etc
$ echo "0.0.0.0 iprofiles.apple.com" >> hosts
$ echo "0.0.0.0 mdmenrollment.apple.com" >> hosts
$ echo "0.0.0.0 deviceenrollment.apple.com" >> hosts
$ echo "0.0.0.0 gdmf.apple.com" >> hosts
$ csrutil enable
$ reboot
-
If you come to the “Choose your country/location” dialogue, make sure to not select a wireless network, but “continue without an internet connection”
-
After a normal boot, you can verify the DEP status in Terminal:
$ profiles status -type enrollment
Enrolled via DEP: No
MDM enrollment: No