How can I get rid of the black hair color? How is it possible to make it lighter?

a year ago I had died my hair black, and I liked it. Recently I got tired of the plain black color, so I started to let my roots grow trying to get my natural light brown hair color back. I was to impatient because u know it takes a while to get back my color, so I decided to died my hair a light brown hair color. Now the problem is that only the top part of my hair, basically the roots actually died the color light brown i was aiming for. Does anyone know how I can get my black hair color back to a light brown hair??How can I get rid of the black hair color? How is it possible to make it lighter?
You can go to one of your local stores, not sure where you live %26amp; if you have the same stores. But Wal-mart might carry it.. (along with target, sally's, and etc) and ask someone for help or look yourself. But you are looking for a hair stripping kit. It will strip the hair dye out of your hair and bring you to your natural hair color or close to it. Good-luck! :)How can I get rid of the black hair color? How is it possible to make it lighter?
bleach your hair, (it will turn bright blonde) then die it the color you want.