Recently, we have received continuous feedback from users that the Bluetooth key and digital key are not working properly or are not functioning; Through analysis of App logs, it was found that after the iOS system locks the screen, the iBeacon background keep-alive function fails, Bluetooth connection also fails, and system callbacks cannot be obtained; the digital key also fails, and it fails simultaneously with the Bluetooth key; We have checked the specific permission configuration and it aligns with the recommended configuration in the official documentation, with no abnormalities. Although this type of issue is not a widespread problem, it has been continuously reported by users and is very troublesome. Does the official team have a clear explanation? Why are both Bluetooth keys and digital keys affected after the app is locked? Digital keys should be less affected. The following is a log analysis of a certain user 1: Step 2, the App entered the background; Step 3, the App's Bluetooth