Before the operation, you need to upgrade and setup Launch Tool to work with X431 Key Programmer first.
Tip & guide to generate and program BYD Dolphin smart key:
Click “Update” on the main menu to check if the software is the latest version.
Click “Read Transponder”
Put the original car key next to the X431 Key Programmer
Click “Read Transponder” to identify the chip info
Read successfully! Please remember the original car key chip model.
Click “Vehicle Remote”
Select BYD>> All remotes>> BYD New AES 433.92FSK
Put the new key into the coil of Launch X431 Key Programmer Remote Maker
Generate remote successfully
Enter BYD Immobilizer software
Select Anti-Theft Key Matching>> Dolphin>> Smart Key>> Key Matching
1.Maximum 4 keys could be matched.
2.All the keys need to be matched again; the keys that are not matched will become invalid!
The sensing area mentioned in the function process may be in the following location (except the ignition switch button, there are key sensing logos in other locations, please determine the location of the sensing area first.
2.Ignition switch button;
3.Bottom of central console armrest box;
4.Gearshift lever rear shelf;
5.Baffle on the driver side of the central console;
6.Shelf under the air conditioning panel.
Put the key that needs matching close to the sensing area
Click Start to perform key matching function
Finally, test if the new key can work or not.