My Samsung Galaxy Tab 4 wifi will not turn on. It stays grey and will not scan networks.

[AC Question]

Tab 4 wifi will not turn on. I have done a hard reset. When I try to turn on it stays grey and automatically shuts off after a few seconds. Please help.

 

[AwesomeIndustries]

Have you messed with something on it like rooting, custom ROM or anything like that? Give more information and context.