Every time Apple claims an update with bugs being smoothed out, there will be new bugs coming forth. The Bluetooth problem, actually is not a new problem, it has been plaguing iOS users since the iOS 8 was rolled out back September 2014. This post is going to dive into the problem and offer some solutions to help you out of the trouble.
First, restart the Bluetooth by turning the Bluetooth off and then back on.
1. Turn off Bluetooth from Control Center, or by going to Settings > Bluetooth and turning off the switch.
2. Reboot your iPhone by holding the Home button and the Power button until you see the Apple logo.
3. Now enable Bluetooth again from Control Center or Settings > Bluetooth.
4. Try connecting the device again.
Second, forget and re-pair your device
If the previous tip didn’t work for you, you can try forgetting the device you paired with from Settings, and then try reconnecting.
Open Settings and go to Bluetooth.
Tap on the “i” icon against the device name you’re having problems connecting.
Tap on the “Forget This Device” button and confirm your action.
Now pair your iPhone or iPad with the device again, and see if the issue has been solved.
Third, reset the network setting
Open Settings and navigate to General > Reset.
Tap on Reset Network Settings.
You’ll be required to enter your passcode, if you have one.
Confirm your action in the popup.
A side effect of doing this is that all your Wi-Fi settings will also be cleared, so you might have to rejoin Wi-Fi networks.
Your iOS device will reboot. Once it starts up, try pairing to the device again.
Fourth, reboot your iOS device.
Press and hold the Sleep/Wake button until the red slider appears.
Drag the slider to turn your device completely off.
After the device turns off, press and hold the Sleep/Wake button again until you see the Apple logo.
If all the solutions above don’t work for you, please go to an Apple store for help or contact Apple support.