My Doogie X90 has a blank LCD

my Doogie X90 LCD (screen) is completely blank. Absolutely nothing shows up on the screen. Slight cracked on the LCD but it was displays everything after I cracked the screen. I tried a hard reset and removed the battery and then inserted it and still no display. I have not attempted to check the connection to the LCD yet. What do you propose I do to get my cellphone working again. It's only 4 months old but due to the slight crack the warranty is not valid.