Try the following:
First, Beijing manufacturing charging treasure does not show fast charge
1, Enter the Settings -- battery\/more Settings to confirm whether the dual engine flash charge is turned on (if no switch, flash charge is turned on by default)
2. Change the lock screen style of the phone (if other or third-party lock screen styles are used, the screen will not display the related icon of flash charge when charging)
3, confirm whether to use the original charger, data cable
4, the connectivity of the socket will also affect charging, you can replace other sockets to try charging
5, disconnect the power, restart the phone and put it for a while, and then try to charge it
6, mobile phone Settings -- System management\/more Settings -- Backup and reset\/restore factory Settings -- restore all Settings.