There are 3 version of the plastic hinge clip (the plastic thing under the key cap) Here is the easiest way to tell
which version you have, look at the metal tabs, TC29 has 4 with top tab closer together, TC28 has 4 but with ones on the bottom
closer together, and TC38 has 3 tabs, with one tab at the bottom.
This is just to show you the layout of the keyboard, you can select your color in step 3.
WHAT COMES WITH EACH LAPTOP KEYBOARD KEY ORDER
Video Installation Guide
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