On this page, you will find the Download link of Champion Z1 Star Firmware (flash file), which can be flashed on the device to fix it without the need of any other software.
Champion Z1 Star Firmware comes as a zip file and is of 38 MB in size. Firstly, You need to extract the zip file on your computer and flash it using the flashtool.
The file version of Champion Z1 Star Firmware is V1 and it was released on 26/06/2015.
File Name: Champion_Z1_Star_26062015.zip
Alternate Name: Champion Z1 Star 26062015
File Size: 38 MB
Released date: 26/06/2015