TS1559: iOS: Wi-Fi settings grayed out or dimLearn about iOS: Wi-Fi settings grayed out or dim
Currently Being ModeratedMay 6, 2013 5:57 PM (in response to larrygaito)
If no change after powering the iPhone off and on and/or after a reset which is similar to a computer restart, try resetting network settings on the iPhone at Settings > General > Reset.
If no change after that, try restoring the iPhone with iTunes as a new iPhone or not from the backup but update the iPhone's backup immediately before doing so for later use.
If no change after restoring the iPhone with iTunes as a new iPhone or not from the iPhone's backup, the iPhone has a hardware problem.