I replaced the built-in hard drive with a Samsung 870 Evo 500 GB SSD on my Mid 2010 MacBook Pro 13 inch (A1278), and attempted to reinstall Mac OS X Lion 10.7.1 from a bootable USB. When I try to erase or partition the SSD, it says: Unable to write to the last block of the device. When I attempt to reinstall Mac OS as is, the SSD does not show up.
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had you formatted your drive to MacOS Extended (Journaled) format? I think it should help.– karolpszoSep 21, 2022 at 19:34
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did you reset the SMC– RuskesSep 21, 2022 at 22:39
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Does that machine only run Lion? You may need a firmware update to talk to that drive.– Marc WilsonSep 22, 2022 at 2:15
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"Unable to write to the last block of the device" is often a cabling issue. See apple.stackexchange.com/…– TetsujinSep 22, 2022 at 7:21
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