Use a soft, non-abrasive surface to protect the glass and display when removed. Key Disassembly Steps
AMD Radeon HD 5670 (512MB) or HD 5750 (1GB GDDR5). Display: 27-inch LED-backlit IPS, 2560x1440 resolution. Essential Technician Tools Suction Cups: For safely lifting the front glass panel. Apple Technician Guide iMac (27-inch, Mid 2010)
Use suction cups to pull the glass panel away. It is held by magnets. Use a soft, non-abrasive surface to protect the