How can you get black hair to be brown again?

I have naturally brown hair, but died it black 4 months ago. How can I get it back to brown URGENTLY? (I don't want to do the whole corrective coloring process with highlighting!)How can you get black hair to be brown again?
to be honest, i died my hair jet black twice, and the last time i did it was in january, and all i did was dye it an auburn brown color, and idk with ur hair color, but with my black color, everytime i washed it more and more it faded more quickly so washing might help too.How can you get black hair to be brown again?
die it brown