I have the same problem as the topicstarter. Bought 2 Z+ devices today and after boorting up the device says there is a update frimware available from v.2.7.70 to v2.7.82. It downloaded the update and reboots the device. In the installer screen i get error with the android icon dead. And it reboots again and the same mesage again.. update and again fails.. This is on both devices.
Please help..!!! Can someone provide me the latest firmware file so i can install it through USB.