Hd replacement

My Problem

HD was beginning to fail to complete time machine backups, and TechTool Pro indicated a temperature fail indicator.

My Fix

Based on your great photos, video description, and parts sources, I not only replaced the HD but upgraded its capacity.

My Advice

No advice to add, beyond a supportive statement that if you don't rush it it's a straight forward repair. Thanks to everyone at ifixit.com.