Now, the Google Play Protect feature is mistaking a system app called Bluetooth Share 7.0 for something unsafe on several Moto G4 devices. Play Protect then disables the app and displays a message "Bluetooth Share 7.0 can damage your device, Uninstall/Remove now."
Once removed, your Bluetooth will fail when turned on. Since Bluetooth Sharing app is a system app and it cannot be uninstalled. You can revert the changes back (Enable the Bluetooth Sharing app) by going to Settings > Applications > Reset Application Settings.
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