Nokia Lumia 920..black stain on back side.

[Arif Khan]

So i had recently bought a lumia 920..since its back isnt much shock resistance i use to be very careful.But recently i had put my phone on the desk and when i picked it up i noticed a blue/black stain on it. Must have been due to the ball ink on the table..i tried wiping it with and alcohol swap but doesnt go.. Any one suggest what i do next? Will the mark stay permanently or will it go?

 

[ballanda]

It will go! Use some sulfuric acid. If that doesn't work, then try Windex. Or Mr. Clean Magic Eraser. You will achieve success! Good luck on your quest!