Solution:
1. Check whether the ambient temperature is too low/high. The Mi 5-blade Electric Shaver needs to be used/charged in the environment between 5-35 degrees Celsius;
2. Check whether there is dust or dirt between the charging interface and the shaver, and try charging again after cleaning;
3. Check whether the charging interface is normal, and try to replace another adapter (5V adapter produced by a regular manufacturer);
4. If the issue persists, it is suggested to apply for after-sale detection.
Does it help?