WiFi selection in settings is all greyed out - I cannot choose a WiFi connection

Basic troubleshooting steps clearly outlined in the User Guide are restart, reset, restore from backup, restore as new.

If you've gone through ALL the troubleshooting steps and you're still having the problem, then you most likely have a hardware issue and will need to bring your phone to Apple for evaluation.

I have the same issue - and I've tried everything listed in these forums and more. Nothing has worked - and I've had the phone less than 24 hours.

I took it to an Apple store to see a Genius this afternoon. They don't say what is wrong, but offered to replace the phone however BEWARE - when they say they will replace it, they often mean with a refurbished device, they will not replace it with a new device. Because I bought mine from a different retailer, even though it is an Apple device failed less than 24 hours out of the box, Apple will not give me a new phone - they acknowledged that it is a manufacturing defect, and couldn't understand why I was not satisfied with receiving a refurbished device. This seems ridiculous to me - I'm a long-time, repeat customer - but that doesn't appear to matter. I've heard great things about Apple customer service, now that I've needed it, I've found it isn't so great after all.

I got in touch with the retailer from whom I purchase the phone - they were shocked that Apple would not replace it - especially since I have Apple Care. They are now trying to get it worked out and obtain a new phone for me.

Of course you will receive a refurbished device. This is clearly stated in Apple's warranty.

I'm sorry, but when a brand new product fails out of the box due to a manufacturing defect, it is the manufacturer who is responsible for replacement with a brand new product - that's just good business practice and good customer service - and I can say that because I've working the manufacturing/sales industry for 20+ years.

If I'd had the phone for a month, or 6 months, then I could see the offer of a refurbished device - but this phone failed less than 24 hours after I took it out of the box.

I am working with the reseller - but they don't have the phone in stock, I got the last one. They also were shocked that Apple would not replace a new device with a new device.

Call a Whaaaaaaaaaaaaambulance.

I agree with you 100%. Yet another problem with people these days. They have been brain washed into accepting that buying something new and getting it replaced with a used product is acceptable. What kills me most is that people are now defending terrible customer service policies. It's priceless!

And another problem with people these days is before purchasing an expensive item they can't be bothered to check and see what the warranty terms and conditions are--and then whine about it later when it's not to their liking.

It's pretty hard to not getting upset when you're in the apple store 3 times in one week, receive three "new" warranty replacements and ALL three won't connect to wifi after a day or so. About ready to switch to an Android phone.