If the Blue Pill device does not have access to the internet, the option to download the core via the web browser should be available.
If Blue Pill is unable to communicate with our server, please read the troubleshooting chapter: [https://wiki.skaarhoj.com/books/blue-pill-reactor/page/unable-to-update-device-corespackagesos](https://wiki.skaarhoj.com/books/blue-pill-reactor/page/unable-to-update-device-corespackagesos) #### **Update Operating Packages** Open the 'Packages' page. Locate the 4 lines: 'hardware-manager' / 'system-manager' / 'reactor' / 'SkaarOS\* If a green 'Update' button is displayed to the right of any of them, this means there is an update available. If so, please click the 'Update' button for each of them or the Update All button ( After the update, if they do not display 'Running' you must click the 'Stopped' text and select 'Restart'. )System Manager and SkaarOS do not update via the Update All option. These need to be updated individually.
It is recommended to update SkaarOS last as it requires a reboot.
 #### **Update Pre-Release Versions** Show Pre-Release must be enabled to see pre-release versions on the Packages page. This is done by clicking on the toggle at the top of the Packages page. ( This only affect the current web browser in the current session. It will be off next time you log in. ) [](https://wiki.skaarhoj.com/uploads/images/gallery/2022-08/show-prerelease.png) #### **White list our server URL's** In order to download software, Blue Pill must have network access to these 3 domains: • [https://pkg.skaarhoj.com](https://pkg.skaarhoj.com) • [https://init.skaarhoj.com](https://init.skaarhoj.com) • [https://lb1.skaarhoj.com](https://lb1.skaarhoj.com)