i have made a model from blender!! and then export it to .fbx!! open unity and import new asset, load the .fbx model!! it appear the model but textures/material is blank and doesn't appear any images!! only blank and black!!
1) Make sure the textures are in your Unity project first
2) Load those textures from your Unity project when UV mapping the model in Blender
3) Save the model as a .blend file into your Unity project
Now Unity will automatically load the textures with the model when importing. Usually there's no reason to export to .fbx manually.