![Rat Rig Community [Unofficial]](https://cdn.discordapp.com/icons/582187371529764864/08375bea6b5b9088b6d4cfc2b6e25fba.webp?size=48){kind=icon}
Can not update MCU 'mcu' error after updating
This is a new Vcore4 build. I've put RatOS 2.1 on the SD card in the raspberry pi, and gone through the initial configuration. The MCU and toolboard flash correctly and everything looks good. When I open Mainsail, there were a couple orange errors. I unfortunately did not document these but they had to do with a T0 range error. I browsed to the machine tab and update RatOS, then did a full update. After the update I get the MCU update error in the title. If I browse back to the configurator, it now says that the Octopus 1.1 446 is detected but is unresponsive.
![Rat Rig Community [Unofficial] banner](https://cdn.discordapp.com/banners/582187371529764864/4ee3e42e227d6aac26f048a3e69d5924.webp?size=480)
The #1 unofficial Rat Rig Community on Discord!
14,070Members
Resources
Recent Announcements
Similar Threads
Was this page helpful?
![Rat Rig Community [Unofficial]](https://cdn.discordapp.com/icons/582187371529764864/08375bea6b5b9088b6d4cfc2b6e25fba.webp?size=16){kind=icon}