Backlight doesn't work after replacing LCD screen

I recently cracked my lcd screen of my Lenovo Ideapad. After replacing it, the backlight doesn't work. Is there anything I can do without replacing anything else?

Dasha is writing about LCD screens that use a CCFL tube for light behind the diffuser. In newer panels, there's no inverter necessary for LED lights.
Take laptop to a repair shop to get it done correctly.

Check the inverter board it is the most common fault, also check if all the connections you replaced are tight and correct.

http://www.computers.robdasha.com

Sounds like you may have a bad connection. I replaced one on a Lenovo and I had a problem getting the cable connected properly.