Install ROM :
- Download FlashTools MediaTek SP Flash Tool v5.1352.01, and Click on Flash_tool.exe
- Select a the MT6592_Android_scatter.txt in ROM
- Wait file to be added into Flash Tool
- choose Options->Options>,Download>select DA DL All with Checksum
- Turn off your phone, remove the battery.
- " Click Download "
- and connect your phone into the computer via USB data cable.
- The process will start and a red progress bar will appear after, yellow, grey and green circles display
- Finish !
- You can now safely disconnect your phone and turn it on.