Open Settings
Tap General
Tap Transfer or Reset iPhone
Tap Reset
Tap Reset Network Settings
Enter your iPhone passcode
Tap Reset Network Settings to confirm
Wait for your iPhone to restart
Reconnect to Wi-Fi networks
Re-pair Bluetooth devices
Open Settings
Tap General
Tap Transfer or Reset iPhone
Tap Reset
Tap Reset Network Settings
Enter your iPhone passcode
Tap Reset Network Settings to confirm
Wait for your iPhone to restart
Reconnect to Wi-Fi networks
Re-pair Bluetooth devices