Chosen Solution
Hi all, I have a MacBook Pro with a flashing question mark in the folder and does not continue to boot. I replaced the hard drive and it worked for maybe 1-2 weeks before having the same problem and refusing to boot. I don’t have backups of the drive and don’t care for the data on it. Just want to get it working first. I’ve tried PRAM and SMC reset to no avail. I tried apple diagnostic and that said either something wrong with the charger (highly doubt it as charger is an Apple unit), or drive failure (code VDH002). I tried verifying the disk in Disk Utility and it said to repair. I tried repairing it and it said “Error: Partition map repair failed while adjusting structures to fit current whole disk size.” While typing that result, the Macintosh HD disappeared from the disk util sidebar. Not sure what it means but I thought I’d mention it. Please let me know what can be done. Appreciate the help! :)
christopherblack2012 - It sounds like you didn’t reformat the drive fully and setup a GUID partition map. Follow this guide from a working Mac: How to create a bootable macOS Sierra installer drive. Then use it to reformat the drive and install a fresh copy of OS onto your drive. As you have some important data on the drive you’ll need to get another drive to setup as your boot drive. Then once you get it going use this adapter to salvage your data from the other drives: OWC Envoy Pro Portable, Bus-Powered USB 3.0 Enclosure for Apple Flash SSDs (June 2013-Current Mac Models)
It sounds like both drives just failed, and you could have bad luck. See if you can boot from an external drive, and try another SSD if you can.
