Texture Problem in Unity

Unity Engine
1

Okay, hello, im new in this forum, but i soon have a question.

When i import .fbx files in Unity3D and place them in the world, all is okay. But when i want to texture them there, the textures are very blurred and dark. I cant see the texture itself. Where can i fix the problem.
I tried to tile the texture until - 20 but nothing happens.

Can you please help me ?
Thank you

and Greetings from Germany

2

Ever try and see in the dark? Try adding a light.

3

EDIT:

Problem fixed !
You have to put all the files into ONE FOLDER and import it with the texture in it to Unity !