Unhappy [Q] Asus Zenfone 5 unbrick.. help me!

I update the phone TW to WW, in the process of updating the device stands at around 30%, which does not run on the next stop. I waited over 30 minutes still the same and I reset the phone and the result is brick, just boot up black screen and USB symbol, on the discovery fastboot recovery lost.
sorry, my english bad.