Brian Tsai has it RIGHT! I purchased the OWC SSD and bracket (NewerTech AdaptaDrive). Using the bracket box to support the LCD screen up on the upper left corner and getting adequate illumination it was really easy to change out the drive. Note - i used a knife to pop off the thermal sensor OFF THE DRIVE (not the PCB) as in Step 21, used the knife to pry off the connectors as in Step 16. I suspect you don’t even have to do Step 7.