To reinstall the keyboard, refer to the steps in this guide.

This step can be skipped if you remove the keyboard to upgrade/replace the RAM. However, disconnecting it may allow for better access to the upper (Keyboard) RAM module.

If you have a can of compressed air available, some of the dust can be removed at this point. Further disassembly is required for a full cleaning.

Disconnect the keyboard from the motherboard. Use a plastic pry tool for this step.