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Please help me with this issue, With Internal Drive in, the machine seems to be having issues booting and/or recognizing the drive, I only hear the startup sound and that’s all. When the internal drive is out that’s when it’s will show the question mark(?) which I know it means it can’t find the startup drive, Booting from external works fine only when the internal drive is disconnected, with the internal drive connected it can’t even boot or see the external drive. What might be causing this issue to happen and how to sort it out. Thank you in advanced.. Juelm
It sounds like your SSD is bad. Lets try this and if it fails to work then you’ll need a new drive. Press and hold the Command (⌘) & R Keys to get into recovery mode. There are two versions one onboard in a hidden partition and the other is the internet recovery. If you go to the internet recovery then the drive is more likely gone. Even still see if you can get to Disk Utility to try to reformat and re-install the OS. Do keep in mind Internet recovery is a slow process so you should try to connect over a fast WiFi or if you can, over an Ethernet connection to your networks hub/router and hopefully a fast Internet connection. Reference: Mac startup key combinations Let us know how it goes. If the drive is gone we can guide you to a replacement.
The issue may be due to a bad install of Mac OS. Have you tried re-installing the OS? If you need the files you will need to connect the SSD to another system using an adapter. If the issue is not due to a bad install, you may need to replace the drive entirely. You can purchase a drive from iFixit here: [linked product missing or disabled: IF123-123-1] I assume you already know how to replace the drive as you said you removed it previously, so I won’t bother posting a link to an iFixit guide. Either of these solutions will require eventually re-installing the OS. You can easily find .iso files for Mac OS online so with a quick google search you should be able to start re-installing Mac OS on a new drive.
