ThinkPad T420 Keyboard Replacement

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Disconnect the keyboard

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.

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