if status LED is blinking RED then something NOT correct. try rebooting and wait for 5-10 mins if still the same then perform hard reset. If reset does not solves the issue then probably box is broken now hence contact support for RMA
Flashing Red Status LED means still uploading firmware image, a flashing Green Status LED means Factory Default mode, which is what will happen if you downgrade without having saved a backup from the previous release.
Does your ZD respond when you ping 192.168.0.2 from a hard-coded PC (any other 192.168.0.x IP)? If so, use HTTPS://192.168.0.2 and run the startup wizard.