1. Install driver.
2. Open Flash Tool
3. Open Download Agent and select MTK_AllinOne_DA
4. Open scatter_loading and select scatter file
Software-> WBWS305WA_0201_T5056 -> MT6589_Android_scatter_emmc.txt
5. Click Firmware->Upgrade and connect USB cable with mobile Off
6. Then start downloading..
7. When it shows Firmware Upgrade , then installation is completed.
After Firmware Upgrade give Reset to Factory Setting
FILE & TOOLS