Apple computers may have the best designs, but it's no secret that they fall short in quality. Some Intel-based Macs do not support booting from RAID cards. If you try to start these Intel-based Macs up from a software RAID volume, the computer may start up with a flashing question mark. If you see a flashing question mark when you start your Mac, it's probably because it can't find the system software it needs to start up. Due to this your computer’s startup time will be delayed or it may possible that it couldn’t start. Common cause of this error message may be corrupted OS install (bad install of update, or other software or bad hard drive - this will need to be replaced.
Lots of other issues which lead to this error that is high chances of corruption in system folder, software is missing or bad sector in hard drive. The two other possibilities are that the MacBook forgot it's startup disk, which can usually be remedied by holding down command-option-p-r when powering up the laptop, or that the system folder became "unblessed", which reinstalling Mac OS X fixes. To check your hard drive is alive or not or retrieve information from hard disk you can do this thing. Simply connect the 2 computers with a firmware cable and reboot your computer while holding down the T button (to boot into target mode). If your hard drive is still alive, it should load like a hard drive connected by USB or firewire to the other Mac system.
To workaround with, you could put in your restore disc and start the Apple hardware test by holding D after the chime. This will tell you if there are any hardware faults. Steps for Mac OS X if you have a MacBook Air then you have two options for starting up with a system software DVD. Connect the MacBook Air SuperDrive to the MacBook Air using the USB port and restart the computer, holding down the C key during startup or use Remote Install Mac OS X to startup from a system software DVD that's located on a partner computer.
If still you are getting this question mark then there are several techniques that can help you in getting your precious data back. We define these techniques as data recovery solution. In data recovery services we use several softwares and techniques which scan our hard drive boot sector and fix the errors and recover your data. In this particular case, you need to use Data Recovery Mac software.
You can use Stellar Phoenix Mac Data Recovery software which is a complete solution that helps to recover data from damaged, deleted, or corrupted volumes and even from initialized disks. Main feature is that it supports the HFS, HFS+, HFSX and HFS Wrapper file systems and works fully in the MacOS 10.3.9 and above.
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