Hello, I have a macbook pro 13" early 2011 Model A1278, I changed the HD for SSD and I copied the information with copy cloner and when it initializes the prohibited symbol appears, I am using High Sierra which is the last OSX that my computer supports, I tried to install Capitan and Lion and when I start it the same error appears, when connecting the SSD via USB it works without problem but internally it gives me an error, change the internal cable to rule out that it was damaged and neither I booted up, changed the ram memories and still had the same error, I did a test by placing that SSD internally in another 2009 macbook pro and it worked without a problem, could someone help me find a solution, thank you
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High Sierra does not start, New Crucial 500GB SSD, Macbook Pro
- Thread starter leoaular
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Have you tried the SATA cable from your '09 MBP that the SSD does work with? The SATA cables on the Unibody MBPs were notorious for failing.
If I already did that test and it doesn't boot either, in reality the SSD is recognized by the disk utility because it allows me to format it and then install the operating systems, I don't know if it is a hardware problem with the Macbook Pro 2011