Replacing A Faulty Hard Drive Cable
20 - 30 minuten
My brother's Mid-2012 13" MacBook Pro was unable to boot from the main disk for an unknown reason, so after replacing the hard drive twice I was puzzled as to why Disk Utility was unsuccessful at formatting the new drive. After some quick internet searches, I decided the problem was most likely a faulty hard drive cable.
After disassembling my brother's MacBook for the tenth time, I was eager to fix the problem once and for all. The instructions were very easy to follow, despite the hard drive cable being the weirdest-looking cable I've ever seen in my life. I also decided to put in the old hard drive to see if in fact the hard drive cable was the only issue—and indeed it was. The computer booted properly to the desktop with all the files and settings we had thought were lost for good.
Backup. Backup. Backup.
If there is anything my brother learned from this ordeal is that you NEED TO HAVE A CURRENT BACKUP OF EVERYTHING ON YOUR COMPUTER.
My brother hadn't been using any sort of backup solution (online or local), nor had he been using any cloud-syncing applications; everything was stored as a single copy on his hard drive. Had his hard drive failed during this ordeal, he would have had to start from square one. He bought a 1 TB external backup drive so this sort of this doesn't happen in the future.
Phillips #00 Screwdriver
MacBook Pro 13" Unibody (Mid 2012) Hard Drive Cable