What happened?
On the Prusa CORE One, and on the Original Prusa MK4/S, MK3.9/S, MK3.5/S, the I2C bus is used for the xBuddy board to communicate with other printer components. In case of an unknown error with sending data from the xBuddy board, the printer will show the message: "HAL detected an I2C undefined error when sending data via I2C."
Error name: I2C Send Undefined
Error code: #31314 (CORE One) #26314 (MK4S) #13314 (MK4) #27314 (MK3.9S) #21314 (MK3.9) #28314 (MK3.5S) #23314 (MK3.5)
How to fix it?
Restarting the printer is expected to resolve the error, and this is not expected to occur again. In case a restart does not resolve it, please contact our customer support, we will take it from here.
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