Bad Profile, unable to see screen

Created a monitor profile using the ColorMunki Photo or ColorMunki Design and now the screen has turned to an unreadable color therefore nothing can be read on the monitor.A bad profile can occur when users have the pouch closed or not in the pouch correctly therefore it is measuring the inside of the bag rather than the screen. The simplest way to remove the corrupted profile is to boot up the computer in safe mode and delete the file itself. 

Follow these steps to start up into safe mode. 
1. Start or restart your Mac. 
2. Immediately after you hear the startup sound, press and hold the Shift key. 
3. Release the Shift key when you see the Apple logo appear on the screen. 

After the Apple logo appears, it might take longer than usual to reach the login screen or your desktop. This is because your Mac performs a directory check of your startup disk as part of safe mode. 
To leave safe mode, restart your computer without pressing any keys during startup. 


Once the computer is completely booted up navigate to this location: 
Users>Library>ColorSync>Profiles 

Locate the bad profile and delete it to the Trash bin. Reboot the computer and it will load the generic profile that came with the monitor. These are hidden Library folders however, the easiest way to temporarily reveal the ~/Library folder is to open Finder. On the menu bar, at the top, select Go to reveal the drop-down menu and then hold down the Option key (marked ALT) and you will see the ~/Library folder appear. You may now select this ~/Library folder with your mouse or trackpad. As soon as you release the Option key, the ~/Library folder will be hidden once more. 

Next, profile the screen following these steps: 

I would recommend turning off “ADC” and not using the video LUTs to adjust brightness by opening the ColorMunki Photo “Preferences” window with the ColorMunki plugged in. Follow these instructions to turn these functions off: 
1. On Mac open the ColorMunki software and click on “File” next to the Apple icon, then click on “Preferences”. 
2. Uncheck “Achieve display luminance value using video LUTs” and uncheck “Enable DDC”. Select “CCFL” for your Technology Type unless the software defaults to something else. 
3. Choose “Version 2” for the ICC profile version and then click “OK” to save these settings and close the “Preferences” window. 
4. Select “Profile My Display”. 
5. When profiling, select the “Advanced” method and use D65 for the white point and select the bottom radio button to choose a target luminance of 90cd/m2. 
6. At the point of placing the device on the screen, make sure that the instrument is in the zippered pouch correctly by examining the shutter before placing it against the screen. Here you will see the slider that needs to be in an opened position and at that point you should see a little bulb inside the device. If you see some type of writing that means that it is not sitting in the pouch correctly. 
7. Allow the colors to measure and make the appropriate adjustments for brightness as directed by the software. On laptops this would be done using either the F1/F2 keys or the arrow keys on the keyboard. Once the colors are finished take the instrument off the screen. 
8. When saving the profile, use a unique name (i.e., insert the month and year BEFORE the “.icm”). The profile name MUST end with “.icm”.

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