Wifi can't turn on after update to IOS 9.0.2 even after network reset

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Level 1

8 points

Wifi can't turn on after update to IOS 9.0.2 even after network reset

Hi, after I updated my iPhone 4 to IOS 9.0.2 the wifi button in setting cannot be turned on any more. It happened before I updated but I was able to resolve that by doing a Reset Network Settings. But after the update, the button no longer slides to the right to turn on wifi, even after I tried Reset Network Settings again! What should I do to resolve this issue? I really hope I don't have to restore to the factory setting because that will require software update again which might mess up this setting yet again!

Thank you very much in advance.

Best,

XMJ

iPhone 4S, iOS 9.0.2

Posted on Sep 6, 2016 9:48 PM

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Answer 1

ChrisJ4203

Level 10

236,369 points

Sep 6, 2016 9:52 PM in response to xmjyjw

You cannot have an iPhone 4 of iOS 9.0.2. The highest the iPhone 4 will run is iOS 7.1.2. If you have a 4s, it would be a bad idea not to update the iOS because of security concerns. Also, the standard troubleshooting for wi-fi issues is to restore.

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Answer 2

xmjyjw Author

Level 1

8 points

Sep 6, 2016 10:04 PM in response to ChrisJ4203

Hi, Chris, thank you for your reply. It's indeed an iphone4s and actually that's the version that the system asked me to update to under Settings.

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Answer 3

elcpu

Level 7

31,586 points

Sep 6, 2016 10:11 PM in response to xmjyjw

If your iPhone's Wi-Fi is grayed out these are the Apple recommended steps:

If Wi-Fi is grayed out or dim on your iPhone, iPad, or iPod touch - Apple Support

If that does not help you should try a system restore. iOS 9.3.5 should not cause any problems on your 4S, no issues have been reported here to that effect.

System Restore: First backup your device using iTunes. Also import your photos to your computer and copy all important data if possible. Try restoring from backup first and testing it. If it does not help, you may have to restore as New and reconfigure from scratch as the backup could be corrupted. For this reason it is important to have your photos and data saved separately from the backup. Here are the steps for a Restore:

https://support.apple.com/en-us/HT201252

If the above steps do not help, you may have to have it tested at an Apple store.

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