4. Open Applications > Utilities > System Information. Under Hardware Overview there will be a Boot ROM Version. Mine was MBP71.0039.B0B. Copy this and paste it into the duplicate string you created at the end. It should look like this:
4. Open Applications > Utilities > System Information. Under Hardware Overview there will be a Boot ROM Version. Mine was MBP71.0039.B0B. Copy this and paste it into the duplicate string you created at the end. It should look like this: