Mini Replacement Key
If your key fob won't turn on you may need an upgrade to the battery. It may also need to be reprogrammed to work with your vehicle.
Typically, you can get this service at your dealer. You can also reach out to an individual locksmith. They will use the VIN number from your car to create a new key.

Battery
The battery in your key fob might wear out and stop working over time. Replacing it is easy and simple and can be completed at home. Simply open your fob, unplug the old battery, and replace it with a new one. It will take some effort, but eventually you'll be back on the road. If you require an internal key blade for your key fob order it when ordering.
Programming
The key that comes with your mini Cooper includes a unique chip inside that communicates with the car to open the doors and start the engine. It's important to always keep a backup, whether it's to replace a key or in case you lose yours. You can purchase the car key you need at your local hardware store. However, you will require a locksmith program to use it with your vehicle.
Coding is a difficult and time-consuming process. The CAS module has to be removed from the car and the key data extracted using soldering. The new key will need to be programmed by an authorized BMW/MINI dealer or professional BMW/MINI coder. This is the reason why most locksmiths are reluctant to take on the task. If you're able, consider a local independent BMW/MINI coder instead. They will use an ID44 programmer to connect to the BC1 module of your car and read the EWS (immobilizer code) from the old key in order to program the new one.
VIN Number
Every vehicle is equipped with a VIN (Vehicle Identification Number) number that is unique to the vehicle. This VIN number is comprised of 17 characters. These may appear random, but they have specific meanings. They are designed to protect vehicles from theft and fraud.
The three initial characters of a VIN code identify the location of the vehicle and the manufacturer of the vehicle. These are known as World Manufacturer Identifier or WMI codes. The characters four through eight provide additional details about the car including its specifications and model. The ninth character is the security code that verifies that the VIN is valid. The last character indicates the year that the vehicle was manufactured.
The VIN number can be found in a variety of locations on your vehicle. It is usually printed on an image that is visible to you when you look at the dashboard or windshield. You may also spot it on the driver-side door jamb when you open the door and take a look inside.
If you're thinking of purchasing an used vehicle, make sure to verify the VIN number prior to signing the contract. A VIN decoder can help you get the VIN to ensure that you don't purchase stolen vehicle or one with damaged. VINs have been standardised since 1981. However, earlier vehicles used a different format, which could be difficult to understand.
Lockout Service
Modern key fobs come with a transponder that will disable the vehicle's immobiliser system. These chips are located in the key itself, and emit a signal which is received by the CAS unit of the vehicle and then it starts the engine. The benefit of this feature is that it will prevent thieves from using a stolen key to start your vehicle.
MINI, which is a sub-division of BMW has a reputation of maintaining high standards of style and technology. No matter if your MINI model is old or new you can avail the replacement of your key for it. This service is targeted towards drivers with cars that are operated with key fobs.
If your key fob isn't functioning, it might need an upgrade to the battery. If it takes longer to open or lock the door than usual it is a typical sign. If this is the situation it is recommended to contact a locksmith local to repair the battery on your fob. The process should only take 10 to 30 minutes. This is a faster and less expensive option than replacing the entire key fob. mini car keys is also available if you've locked yourself out of your car and need help to get back in.