Issue with machine not accepting new SSD
Weird one this hope some one can help.
I’ve got an old 2011 13” MacBook Pro had the screen repaired but the hd wouldn’t boot, replaced the SATA cable and the HDD boots, did clean install all works fine.
Installed a SSD after initializing it via format as an external HD in disk utility. Preformed an internet recovery and started to install Lion (old) select the disk downloaded the OS then system reboots to start install only it doesn’t load in, at first I was getting the prohibited sign, so I tried a new tact by installing the OS on the SSD as an external device which worked and it was bootable, then when I put it back into the machine on boot I get the flashing folder icon and I cant boot in.
I swap the SSD over to my 17” MBP 2011 and it works fine no issues boots straight up.
Tried numerous processes of elimination by using my boot drive from my 17” MacBook Pro in the 13” MacBook Pro but I get the same issue - flashing folder. But a standard HDD works fine in the old machine.
Does anyone have any ideas?
I did replace the SATA cable prior to installing the SSD with this cable, https://www.amazon.co.uk/gp/product/B07B...
I will buy a new one maybe from OWC and try again, the image below is the cable thats currently in the machine.
Its perplexing as when in disk utility it recognizes the SSD When installing via external SSD and disk utility it works and boot. As soon as its in the machine, flashing folder on boot, holding alt only takes me to recovery.