ZDR W3 Android 4.2.2 Jelly Bean
stockrom for ZDR
1 : download the rom on your computer
2: install usb driver for computer
3 : open SP flash tool and load the scatter file from rom folder
4: connect your phon to the computer
5: press on upgrade/download button in the sp flash tool to begin the flashing
6: green ring will appear at the end of successful flash.