Device settings informs you of which version of the operating system you have and enables you to download to the latest version. You can find which version your device is running below the reMarkable-logo (e.g. Codex version 0.0.4.51)
How to update to the latest version:
- Tap Check for updates to see if there are any new versions available. Make sure you are connected to Wi-Fi.
- Tap Download version to update to a new version.
- When the download is finished, click Restart device to complete the update.
Note: Your device is by default set to auto update, which is recommended for you to always have the latest updates and the newest functionality. With this enabled you will get a notification on the home screen to restart the device when the new version has been downloaded. You can turn auto update off by pressing the on/off-switch.
Some airlines are very strict when it comes to Flight mode, and it is not necessarily sufficient to show that Wi-Fi is turned off. You can find the Flight mode in Device settings. There will be an icon on the home screen when Flight mode is enabled.