Wifi not working after upgrade to iOS 7: Apple Support Communities 2013年9月23日 - After upgrading iOS 7 on my iPhone 4S, the wifi is not working. It cannot detect any wifi nor am I able to enable wifi under settings. Is there a ...
How to fix iPhone WiFi connectivity issues? | CopyTrans Blog 2013年8月28日 - This is by far the most common iPhone WiFi connectivity problem. The issue is especially widespread on iPhone 4S devices but users having ...
