Disclosed herein are methods, systems, and devices for configuring a stimulation unit of a hearing device by determining whether the stimulation unit can process received stimulation data. In an example method, the stimulation unit receives one or more data signals, which comprise at least one stimulation signal that includes stimulation data, and processes one of the data signals to determine whether it can process the stimulation data in order to generate one or more stimuli. If the stimulation unit can process the stimulation data, the method includes operating the stimulation unit in a normal mode, in which case the stimulation unit processes the stimulation data to generate the one or more stimuli. On the other hand, if the stimulation unit cannot process the stimulation data, the method includes operating the stimulation in a safe mode, in which case the stimulation unit does not process the stimulation data.
