There are some fringe cases where some actions can cause the printer to stop responding to any commands. Note that these errors will not happen all the time that these actions are taken.
In this guide, we will cover the two possible scenarios, and their resolution.
This issue can happen if you have a firmware version from 1.3.0 to 1.4.2, try to update to version 1.6.0, and try to revert back to the previous version of the firmware you had installed. The screen will not change from the Prusa logo.
Commonly, this error is shown when the exposition panel is not connected properly. This can occur when switching the boot slots twice, as an example: upgrading to 1.6.0, downgrading to 1.5.0, and re-upgrading to 1.6.0.
As a first attempt, try reconnecting the LCD Adapter. This might help, as the printer version is recognized through this cable. If multiple attempts at this don't resolve the error, proceed with the guide below.
If you have a question about something that isn't covered here, check out our additional resources.
And if that doesn't do the trick, you can send an inquiry to [email protected] or through the button below.