According to the article “Unable to use Wi-Fi or Bluetooth with iPhone or iPod touch because there’s no address listed for the device,” symptoms of the issue may include a greyed out Wi-Fi or Bluetooth icon, a lack of an address for either or both of the protocols, the appearance of a Wi-Fi signal but no ability to connect to online services, and the inability to pair with a Bluetooth device.
Apple lists three steps for fixing these problems, telling users to try resetting network settings, erasing all content and settings, and restoring the software. If none of those three methods work, Apple says the device may need repairs.Apple has posted a support document to assist those having Wi-Fi issues with their iPhone or iPod touch.
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