Mini Replacement Key
It could be that your key fob needs an upgrade to its battery. It may also require reprogramming to fit the specific vehicle you have.
Typically, you will find this service from your dealer. You can also speak with an individual locksmith. They will utilize the VIN number of your car to issue you an entirely new key.

Battery
The battery inside your key fob may run out and stop working over time. Replacing it is fast and simple, and can be done at home. Simply pry open the fob, remove the old batteries and replace them with the new ones. It will take a bit of effort however you'll be driving again in no time. If you require an internal key blade for your key fob, please make it a priority when you place your order.
Programming
The key that comes with your mini Cooper includes a unique chip inside that communicates with the car to open the doors and then start the engine. It's essential to always keep a backup, whether it's to replace a key or in the event that you lose yours. You may be able to locate a generic key at a hardware store but you will need an expert locksmith to program it to your car to ensure it can function.
The process for coding is complicated and time-consuming. The CAS module has to be removed from the car, and the key data extracted by soldering. The new key will need to be programmed by a licensed BMW/MINI dealer or a professional BMW/MINI coder. A majority of locksmiths won't take on the job due to this. You can also consider an independent BMW/MINI coder in your area. They will use an ID44 programmer to connect to the BC1 module of your vehicle and read the EWS (immobilizer code) from the old key to program the new one.
VIN Number
Every vehicle has its own unique VIN number. This VIN number is made up of 17 characters which may appear random but have distinct meanings. They are designed to safeguard cars against theft and fraud.
The three initial characters of the VIN code identify the location and manufacturer of the vehicle. These codes are referred to as World Manufacturer Identifier (WMI). The characters 4-8 provide additional details about the vehicle, including its model and the features. The ninth character is the security code which verifies that the VIN is valid. The last character is the year the vehicle was manufactured.
You can find the VIN number on many different places inside your vehicle. The VIN number is typically printed on a sticker that can be seen when you look up on the dashboard or the windscreen. It can also be found on the driver's side of the door jamb by opening the door and looking inside.
Before signing the contract to purchase an used vehicle, verify the VIN. A VIN decoder will help you to get the VIN so you don't purchase a stolen vehicle or one with damaged. VINs are standardized since 1981. However, before 1981, vehicles had a different format, which could be difficult to understand.
Lockout Service
Modern key fobs are equipped with a transponder which can disable the vehicle's immobiliser system. These chips are embedded within the key and transmit signals to the CAS in the vehicle, which then starts the engine. The advantage of this feature is that it will keep thieves from using stolen keys to start your vehicle.
As a subdivision of BMW, MINI has a reputation for upholding high standards of style and technology. You can exchange the keys on any MINI model, whether old or new. However this service is typically geared towards drivers who have vehicles that work with key fobs.
If your key fob isn't functioning, it could simply require an upgrade to the battery. G28 Car Keys of the most common signs is if it takes longer than usual to trigger the lock or unlock button. If this is the case you need to contact a local locksmith to replace the battery in your fob. The process will take between 10 to 30 minutes. This is a faster and cheaper option than replacing the entire keyfob. This service is also available if you've locked yourself out of your car and require assistance to get back in.