1. Click on the \"Wallet\" APP of Honor mobile phone. Generally, Honor mobile phone will come with this APP, and the owner does not need to install it again;
2. After entering the APP, click \"Car Key\" and then click the \"Add\" button below;
3. Place the car key in the sensor area on the back of the mobile phone to read the relevant information of the card key;
4. After the key is successfully added to the phone, the card key will be copied to the phone, and then it can be used normally.