click setting, click connections ,click wi click wifi slider button does nothing,click wifi and goes to wifi wifi direct and ,advanced click any of them and everything is grayed out .
Ouch... Let's hope it can be solved with software. First try to reboot to see if it's fixed. If not, try resetting networks. If that doesn't work, backup your data, and perform a full reset of the phone (wiping all data). If that doesn't work, then motherboard is toasted and probably will need service. Either way, backup your data.