I cannot turn on my wifi

I have Motorola droid razr xt912, and for few months my WiFi is just turned off, when i try to turn on i see information "turning on" but completely notching happens, I don't know what is wrong... i tried factory recover two times but it doesn't help, somebody have some solution or I need to buy new phone or maybe some parts ?

Motorola Droid RAZR xt912