Apple mobile phone wireless LAN connection can not refer to the following methods.
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1, if the phone is not connected to other WiFi, there may be software or hardware failure of the phone, you can reset the phone to the factory state to eliminate it, or by the mobile phone after-sales service center professionals to conduct a comprehensive test of the software and hardware of the phone.
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2, if the phone is only a WiFi can not be connected, it is recommended to use the following methods to check.
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(1) Software errors occur in the operation of mobile phones, cats, and WiFi routers. It is recommended to power off the mobile phones, cats, and WiFi routers and restart them.
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(2) Reduce the distance and physical obstacles between the mobile phone and the WiFi router to ensure good WiFi signal coverage quality.
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(3) Check whether there are too many people connected to WiFi or watching online videos, playing online games, downloading files, resulting in heavy hardware load of WiFi router, unable to respond to your networking request.
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(4) Check whether the WiFi router configuration has made network connection restrictions on the mobile phone.
If you can open it, open it in the Settings center.