Example of them over-opened, just press them back down to put them into normal range
again.
Step 6. Put the USB cables into the terminals following the B, G, W, R markings for the wire color.
Verify that you can see the wires in the tiny windows (at least as best you can to verify they’re far
enough back) and then use your thumb and forefinger to close the terminals. Make SURE they are all
the way down, below includes an example of “looks like it’s closed all the way, but it’s not.”