[IHD-200 Series] Why is there always a failure when updating firmware?

1. If you don’t use Safari browser, please download BonjourSDKSetup on PC.
　 You could download on Internet for free (IE browser is not recommended.).
2. Make sure to choose the right firmware on the right unit (click on the right Web UI).
3. Do not interrupt while updating.
4. You should update each unit to make there are all using the same firmware for optimal performance (eg, if there are 3 Rx, youshould update for 3 times.).