# Software updates Logger software can be updated in two ways: * **Remotely (Software Over The Air)** - the Efento team, after preparing and testing the new software version, can remotely update the software on all connected loggers. The software update is done by sending to the logger only the difference between the new software version and the current version. Thanks to this, the consumption of battery and data transmission during the update is limited, which extends the working time of the logger. This type of update does not require any action on the user side and is done in a way that does not have any impact on the operation of the device. * **Locally** - wirelessly using Efento Logger mobile application. This update method is mainly used to upload test software versions provided by the Efento technical support team. To update sensor’s software locally connect to the logger with Efento mobile application -> three dots in the upper right corner -> “Power user” -> “Update firmware from a file”. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.efento.io/nb-iot-loggers/software-updates.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.