--- title: How to update/upgrade the Epos 300 description: How do I update/upgrade my Epos 300, update firmware, upgrade firmware, upgrading, updating, Kelvin Narrator App update --- [Skip to content](https://help.kelvinlight.com/knowledge/how-to-update-the-epos-300#main-content) English Show submenu for translations [Contact us](https://help.kelvinlight.com/knowledge/kb-tickets/new?hsLang=en) [Customer portal](https://help.kelvinlight.com/kelvin-portal?hsLang=en) ![260521\_Kelvin\_Logo\_K Symbol original-Jun-08-2022-02-08-23-57-PM.png\]](https://help.kelvinlight.com/hs-fs/hubfs/260521_Kelvin_Logo_K%20Symbol%20original-Jun-08-2022-02-08-23-57-PM.png?height=40&name=260521_Kelvin_Logo_K%20Symbol%20original-Jun-08-2022-02-08-23-57-PM.png) Open main navigation Close main navigation - English Show submenu for translations - [Contact us](https://help.kelvinlight.com/knowledge/kb-tickets/new) - [Customer portal](https://help.kelvinlight.com/kelvin-portal) - kelvinlight.com kelvinlight.com Welcome to the Kelvin Service Center. How can we help you? - There are no suggestions because the search field is empty. 1. [Help Center](https://help.kelvinlight.com/knowledge?hsLang=en) 2. [Epos Series](https://help.kelvinlight.com/knowledge/epos-series?hsLang=en) 3. [Epos 300](https://help.kelvinlight.com/knowledge/epos-series?hsLang=en#epos-300) # How to update/upgrade the Epos 300 ## How do I update/upgrade my Epos 300 To update/upgrade your Epos 300 you need to: 1\. Update the Kelvin Narrator App on your device through the App Store/Play Store. 2\. Connect your device via the Kelvin Narrator App to the Epos 300. 3\. You will get a message on your device asking to update the Epos 300. Select yes and start updating. 4\. Turn off your Epos 300 and wait for a moment. Then turn it back on. You will now see an upgrade message on the controller of your Epos 300. Do not disconnect the lamp or any cable while the Epos 300 is upgrading automatically. When this is done press finish. Your Epos 300 has been updated successfully and is ready to use. - [FAQ](https://help.kelvinlight.com/knowledge/faq?hsLang=en#main-content) - [Order & Returns](https://help.kelvinlight.com/knowledge/faq?hsLang=en#order-returns) - [Payment](https://help.kelvinlight.com/knowledge/faq?hsLang=en#payment) - [Shipping](https://help.kelvinlight.com/knowledge/faq?hsLang=en#shipping) - [Technical Support](https://help.kelvinlight.com/knowledge/faq?hsLang=en#technical-support) - [Feedback & Requests](https://help.kelvinlight.com/knowledge/feedback-requests?hsLang=en) - [Legal](https://help.kelvinlight.com/knowledge/legal?hsLang=en) - [Play Series](https://help.kelvinlight.com/knowledge/play-series?hsLang=en#main-content) - [Technical Questions](https://help.kelvinlight.com/knowledge/play-series?hsLang=en#technical-questions) - [Getting Started](https://help.kelvinlight.com/knowledge/play-series?hsLang=en#getting-started) - [Epos Series](https://help.kelvinlight.com/knowledge/epos-series?hsLang=en#main-content) - [Epos 600](https://help.kelvinlight.com/knowledge/epos-series?hsLang=en#epos-600) - [Epos 300](https://help.kelvinlight.com/knowledge/epos-series?hsLang=en#epos-300) - [Narrator App](https://help.kelvinlight.com/knowledge/narrator-app?hsLang=en) [![](https://help.kelvinlight.com/hs-fs/hubfs/260521_Kelvin_Logo_K%20Symbol%20original-2.png?width=70&height=61&name=260521_Kelvin_Logo_K%20Symbol%20original-2.png)](https://www.kelvinlight.com) Copyright © 2026, [www.kelvinlight.com](http://www.kelvinlight.com)