Huawei Mate X3 supports wireless charging. To use wireless charging, you need a compatible wireless charger. Connect the wireless charger to a power source and make sure the indicator on the charger is lit.
Then, align the back of the Mate X3 with the wireless charger to make sure there are no obstacles between the two. When the Mate X3 is aligned with the charger, the charging status will be displayed on the screen. Simply place the phone on the charger and it will start charging wirelessly. Note that wireless charging may be slower than wired charging, so be patient until the charging is complete.