The start-up screen hangs infinitely with an error message- 'Out Of Range' and finally goes black resulting in the inaccessibility of your data in the Mac hard drive. At the beginning, you may think that this is an issue with the display resolution, however, the problem can be due to a more serious cause such as the corruption of the file system. If after resolving the so called display related problems, the issue still persist, you need to take the help of any Mac recovery technique to recover back all your lost or inaccessible data.
Though initially anyone can think that the problem is related to the screen resolution, there can be some other serious problems as below:
- Corruption to the directory structure
- Corruption to the Master Boot Record or the boot sector
- Any corruption or malfunctioning of the Mac OS
- Virus or Malware infection
Whatever be the reason behind, at the end of any of the above problem, it is your valuable data that is in stake and you have to opt for a Mac data recovery software to bring the data back.
In order to start resolving the issue, you need to check whether there is any problem with the display and to resolve the same, just go through the below steps:
- Boot the computer in Safe Mode.
- Go to the system preferences from the Apple menu.
- Click on the 'Displays' in order to open the preferences pane.
- Select the 'Refresh rate' that is supported by your system.
- Restart the computer.
If after following the above steps, you are still getting the same issue, there is a possible file system corruption and you have to run the tool 'Disk Utility'. Disk Utility can help you check for the damage and repair it. If Disk Utility also fails to resolve the issue, you can have another try in order to repair the damaged file system with the 'fsck' command.
If all the above methods fail to resolve the problem, you are left with only one option, that is to run an innovative Mac File recovery software.