1. The charging head used is not an official original. When the charging head output current is insufficient, the phone cannot enter the fast charging mode.
2, if the quality of the charging cable used does not meet the requirements, it is recommended to replace it with a randomly adapted charging cable, and then try again.
3, due to system reasons, there may be some bugs, resulting in the mobile phone can not automatically enter the fast charging mode. At this point, it is best to reinstall the charging connector.
4, if the charging head and cable do not have problems in use, it may be due to the mobile phone hardware to cause the fast charging mode to fail. It is recommended to send the phone to the after-sales service department.