My desktop Mac shows question mark only, and will not start. What can be done?
How to start a Mac which displays question mark, but will not start?
How to start a Mac which displays question mark, but will not start?
In short it means the Mac cannot find the start up volume. It likely has a failed start up drive and needs to be taken into your local Apple Authorized Service Provider for service.
My desktop Mac shows question mark only, and will not start. What can be done?