Small textures (16x16) are automatically blurred when imported into Unity

Hello, I’m creating a minecraft like game.

I’m using small textures (16 pixels by 16 pixels) for each cubes, here is an example:
88737-16x16.jpg

But once my texture is imported, I have this result:

Any idea why ? and how to fix it ? (I’m already using the filter mode “point”)

  1. export in targa, 32 bit as 32 by 32 (that’s the smallst texture possible, you have to ctrl+alt+i in photoshop and change the size by x2

  2. texture import settings, max size: 32x32 pixels

  3. compression: none

  4. filter mode: point