If you have a damaged board due to lightning, pest infestation or other causes, then a new board may be needed. It is fairly easy to swap the board and it does not require any programming to be performed by an authorized dealer to update the board.
The board will be compatible with the following models of Automower.
430X,XH/450X,XH/550/550H, 435X AWD, 535 AWD
Note that the part numbers for specific models may be different even though the hardware is the same.