Restored the data from my dead iMac to the MacBook hard drive.. Long story on a previous post.. There is a known and well documented issue with the internal SuperDrives .. But no real solutions as far as I can see.
I see from another discussion that "The MacBook was working fine until I changed the SuperDrive, now it won't switch on". I also see your other discussion about restoring your data, but it's still not clear to me if you did a clean install of OS X to your MacBook's drive and then restored your user data from the iMac's drive, or if you cloned the entirety of your iMac's drive to the MacBook's drive completely. For example, you said you "Created a recovery flash drive disk, booted up on that, partitioned the source disc to below 160gb and then restored the data filled partition to the internal disc." That sounds like you cloned the iMac drive to the MacBook drive (bad thing to do), but it also could be interpreted as meaning you manually copied your personal data files over. We simply don't KNOW what you've done. You are rather vague on this and may be using terminology inappropriately.
Regardless, here's the other thing. You changed out the DVD drive yourself for some reason, leading to a failure of the MacBook to boot. Quite frankly it sounds like you didn't do this swap-out right, or damaged something in the process. It's also been pointed out that these slot-loading Superdrives are notorious for having a short life. There's not much of a solution here because we simply don't know PRECISELY what you have done with this thing or what damage you may have caused yourself. I for one have no interest in trying to sort this out. Again, my sole recommendation is to reinstall OS X from scratch. Do this:
- Make a backup of your internal drive to an external drive. Use a cloning tool like SuperDuper or Carbon Copy Cloner.
- Boot off the recovery partition and reinstall OS X from scratch. Clean install it by formatting the internal drive first. Instructions here:
https://support.apple.com/kb/PH4439
- Once OS X is reinstalled, migrate your data back over using the Migration Assistant. You can migrate from the cloned drive or from a Time Machine backup.
If you need any clarification on these steps, feel free to ask. Until we have a clean, properly installed and working installation of OS X on your MacBook, I think trying to troubleshoot this is an exercise in futility.