How can you enter the hole blocked by team steam in route 510 Pokemon light platinum?

You can't enter the hole blocked by Team Steam in Route 510 of Pokémon Light Platinum. It's a deliberate part of the game's design, and there's no way to access it in the normal gameplay.

The hole serves as a visual reminder of the Team Steam's presence and their influence in the area. It also serves as a potential point for future expansions or content updates, if the developers choose to implement it.

So, while it's tempting to try and find a way in, rest assured that it's not intended to be accessible in the current version of the game. Focus on progressing through the main story and exploring other areas, as you will encounter plenty of challenges and discoveries along the way.