Spice Mi508 Flash by SP flash tool
1- Download the file.
2- Unzip the folder.
3- Open flash tool folder.
4- Double click on Flash_tool.exe
5- Click on Scatter-Loading & assign path of firmware.
6- Click on download.
7- Switch off the mobile & press volume down key to boot.
8- Flashing initiate.
9- Download Ok will appear when flashing is completed.