Software updates for hotel door locks can be made using Bluetooth technology. For this, a special software update application is used. Through this app, locks are communicated via Bluetooth and update requirements are determined. Then, update files are sent to the locks, and the locks receive these files and update their software. After the update process is completed, the success status is checked by the application and the process is terminated. This way, hotel door locks have up-to-date and secure software.