At the Carnarvon Magistrates Court on Monday, Dingo was not required to attend for the first hearing of the aggravated common assault charge against him.
Police allege the 54-year-old slapped the boy on the face at a school assembly on July 28.
Dingo entered a plea of not guilty by endorsement in a letter to the court.
A date of February 3 has been set for a trial in Carnarvon.
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