wi-fi "unable to scan for networks"


Hello I have a problem with my liquid e. I have not rooted it or modified it in any way but I'm guessing one of the apps I downloaded caused a problem and now I can not get my wifi to turn on. I used to beable to use my wifi befor l. My blue tooth won't work either I click on it and it goes grey and that's it.
I did a factory reset but the problem is still there anyone have any additional help they might be able to give me?