Wifi
My Iphone WiFi button is grayed so I cant even turn on WiFi. How do I fix this? I already tried resetting network settings and phone.
iPhone 8
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Is your Bluetooth switch also greyed out? If it is your phone’s radio chip has probably failed; you will need to contact Apple support to arrange for a repair.
You can try restoring the phone to factory settings using your computer→Restore your iPhone, iPad, or iPod to factory settings - Apple Support, then testing before you restore your backup. If this doesn’t fix it then it’s definitely hardware.