Wi-Fi Greyed Out On iphone 4s What Do I Do?

Wi-Fi Greyed Out On iphone 4s What Do I Do?

That probably means a bad Wi-Fi antenna.

First, try restarting your device. Hopefully this works, but I doubt it.
If that doesn't help, go to Settings>General>Reset>Reset Network Settings
This will erase all network settings and hopefully that works.

If that fails, then you might need to restore your device in iTunes. This will erase everything off of your device, so make a backup before continuing.

If that still fails, then the Wi-Fi antenna is damaged and will need to be replaced.

Not sure if it's hardware but you should check if it's software. Turn off the phone and keep it that way for a couple of minutes and then turn the phone on. If you still see Wi-Fi greyed out, you need to factory reset the phone.Back up everything on iTunes or iCloud and do the factory reset, Settings > General > Reset > Reset Network Settings (this will reset all the network settings including your carrier's). If network settings didn't work, do the Reset All Settings which will reset everything on the phone. After the phone resets and restarts, check if the Wi-Fi is working and then Restore from the backup on iTunes or iCloud. If the Wi-Fi is not working, it's hardware probably.