If you have purchased a new SSD and installed it into the main drive bay of your system, the first thing you need to do is to initialize it for first use. If you attempt to boot from an SSD without an operating system installed, a flashing question mark appears to indicate that there is no bootable device. To initialize your SSD for first use, please follow the steps found here. After your SSD is initialized and picked up as usable drive in Disk Utility, you are ready to reinstall OS X®. This can be done by using the Apple® Recovery Mode (Command + R) or using the Recovery CDs that came with your Mac® computer. You can also restore from a backup, described here.
If your system was working but you are now suddenly seeing a flashing question mark, you can try the following steps to restore things back to normal:
This suggests that you may need to reselect your SSD as the main startup disk in the System Preferences. The flashing question mark means the system cannot immediately boot using the SSD and is looking for other boot devices before loading. You can try the steps below to resolve this:
If the above methods do not resolve your startup error, please contact us for further support.
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