ZD 1000 having issue

Question

I have ZD 1000 model, i upgrade the firmware version 9.0.3 series suddenly the ZD version not upgrade & the status light in red blinking intermediately every 20 seconds after that i reset the ZD but it can't take that.

unknown · Answer

Not sure what version you upgraded from, but on that old hardware, you want to follow the suggested upgrade path and probably factory default it at this point.  If you can, disconnect any APs so that they aren't polling for firmware updates after each jump.