"?" even after hard drive change
At first I think it is a bad SSD hard drive, so I purchase a new one. After installing it, and put the old drive into a USB case, the old drive works like a charm on another mac using USB with which I have recover all the files. The MacBook Air with the "?" issue still blinks. I tried external hard drive, USB CD drive with snow leopard, and even wireless, with no luck. In case of the wireless, I got it to log onto my wireless system, but that is the end of the entire deal. No more next step. Please advice.
Go tit working... finally. It is a bad hard drive cable. After I am able to swap a new cable, the old hard drive is working now. Must have kinked the old one too much that I break it.
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What happens when you put the original SSD back in, does it work then? If it works you need prep the new SSD using the external case to house it. Then make sure to use system pref to select the external SSD to be the boot volume and then swap them over again.
Dan さんによる