If you are removing only the keyboard, you only need to remove two screws.

1 - Remove the screw to the immediate right of the INSPIRON M5030 label.

2 - To the top left of the INSPIRON M5030 label, there are two screws. Remove the left one.

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I marked the two screw locations with green, for clarification.

- https://ibb.co/nz4rNG

- https://postimg.org/image/67kinagal/

The keyboard is best handled as a whole part replacement. You can find M5030 replacement keyboards for about $10 on Amazon/eBay.