two possibilities
One is to turn off the fast charge of the mobile phone, turn on the fast charge, first open our mobile phone, and then find the setting, enter it and find the \"power saving and battery\" again; Then find the \"fast charge acceleration\" function in it and enter its function; Finally, in the interface, open the \"default use fast charge acceleration\" function, you can complete the fast charge Settings.
Two possible data line is broken, change a data line can be.
Because the phone does not support 120 watts fast charge, or the charger you are using does not support 120 watts fast charge. First of all, check the relevant parameters of the mobile phone, how much is the maximum power of charging, and then see whether the charger you buy or the charger that comes with you supports 120 watts, only the mobile phone supports, and then the use of 120 watt charger can support the maximum power of 120 watts, which is indispensable