restricted to 30 mph help ?????????????????? needed

hi guyes does any body no how to un restrict emax scooter 2008 model
as it is electronically restricted to 30 mph but i am sure that i had seen a french site how to do this ??
but it was a wile ago my son is borrowing at the mo and says its too slow so would like to proove to him its better already than the old broken ic engine in the back am trying to fix at the mo but he may keep it if i manage to un restrict it to a resnoble 35 mph as i fitted a new brain to it as