You can perform the following steps to enable the Huawei Free 50 fast charge function.
First, you need to use the original fast charger and make sure that both the charger and the phone are in working order.
Then, plug the charger into the charging port of the phone, and wait for the screen of the phone to show the fast charging state. In the fast charge state, the phone will display a reminder of faster charging speed, and the charging indicator will also light up. After you turn on the fast charge function, you can charge your phone in a short time, bringing more convenience to your use.