what can i do when wifi on iphone 4s is greyed out and I can't turn it on or off?
Take your phone into Apple for service as it is likely a hardware issue.
Tap Settings App > General > Reset > Reset Network Settings. If still problem, Restore iPhone with iTunes on computer. If still problem, all iPhone 4S have full Warranty, make Genius Reservation and take iPhone to Apple for resolution.
Took it in having a new one sent. Thanks for help!
Glad you got it worked out.
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