Problem description: The battery level display is abnormal, at 1% (red). The health status is not displayed, 

and the issue persists after restarting.

Cause analysis:

The battery level display is abnormal, indicating that there is a problem with the connection between the phone and the CK 

battery. Communication between the CK battery and the original BMS cannot be established, 

so the health level is not displayed.

1. Possible cause: The CK battery and phone connection buckle are loose.

Solution: Tighten the CK battery and phone buckle again, restart the phone to solve the problem.

2. Possible cause: CK battery hardware malfunction.

Solution: Replace the CK battery with another phone. If the battery level still cannot be displayed properly, apply for after-sales warranty,

send the CK battery back to analyze the cause, and replace it with a good one.