Hello all, I've got a Macbook Pro running yosemite 10.10.5 that is having troubles starting up. The WiFi quit this afternoon, and it refused to reconnect to my network. Next, I tried restarting it. It seemed to boot fine until the loading bar got 50% done. After that it refused to start up any further. The hard drive was recently replaced, so it shouldn't be the drive that is the issue. I started up in recovery HD and repaired the drive's permissions successfully. I then rebooted again, and it booted fine. No issues, and no issues since. I have never had any troubles up until now. Could this new issue be caused by a failing hard drive cable?