The Prepare Method may be called to prepare a device for an update. This call transitions the device into the state Preparing.

After the preparation is complete the state machine may perform an automatic transition to the state PreparedForUpdate.

If the preparation cannot complete and the device does not get prepared for update the state machine transitions back to Idle. In this case a message with the reason should be provided to the user via the UpdateStatus.

Signature

Prepare();

Method Result Codes (defined in Call Service)

Result Code	Description
Bad_InvalidState	If the PrepareForUpdateStateMachineType is not in Idle state.