I really don’t know how to explain this, but i created a 280 x 80 PNG logo, it was fine in photoshop, but then i uploaded into Unity3d and edited it with Sprite Editor and it got messed up… 
The logo i made in photoshop:
And what happened in Unity3d Sprite Editor:
Any help is appreciated.
Any one?
Adjust import settings,
try
Filter mode: Point
Format: True color
Can also set texture type to Advanced for more settings
Thank you for your reply, but i have tried that before but it didn’t work.
Have tried disabling rounding to nearest power of 2 in the advanced settings?
Where can i see advanced settings exactly?
Put “Texture Type” to “Advanced”, instead of “Sprite (2D and UI)”
Ah thank you, i went under advanced settings and checked “Generate Mip Maps”, turns out that solved the problem here. Thank you again for your help.
please edit your title with [solved] then
mip maps dont do anything, please help 
These options no longer exist…WTF
If you do necroposting as your first message, care to elaborate which “options” you are talking about?
But anyway it seems OP problems are caused from using texture compression, those blocky artifacts look like compression blocks.
Generate bit maps solved it for me too!!! thanks.
“Generate bit maps solved it for me too!!! thanks.”
You mean mipmaps?
for me changing the filter mode to RGBA 32 bit worked
You just have to set the compression to none in the import settings
i’m not sure if that changes a lot, but my problem was the same as image of the first guy, but on the sprite for a character (at the slicer i could see the problem.) and this worked, this option is at the bottom of the inspector.
