Chosen Solution
Just recently purchased the SSD upgrade for iMac Intel 27” and when I boot the computer I get a blinking folder with question mark. Ive tried resetting pram, starting in safe mode, booting from disk, etc Basically Ive tried every start up trick I could find online but the computer still wont recognize the new SSd. Help?
Your iMac is missing the system software which is why the folder with a blinking question mark is showing up. Your system might have the ability to do Internet recovery. How about giving it a try! Press either the Option -Command - R or Shift - Option - Command - R keys to start up from macOS Recovery over the Internet. Mac startup key combinations If that fails you’ll need to create a bootable USB drive or get a SATA to USB adapter so your old drive can be connected to your system.
