Stuck System Upgrades

If you encounter a Mac that is stuck on the loading screen

• Check the disk first with DriveDX.
• Check to see if the storage and hard drive cable are good. The important SMART stats to look at are sector errorsand CRC errors.
• Use Disk Utility to run first aid. If you get anything other than OK and "Operation Successful" there is an issue that needs to be repaired before moving on
• Hold the Shift key to boot to safe mode. Type in the password. Reboot when done