choose for the size to include through the USRDATA to be safe although you can do less

make sure the file starts with the filename ROM_ so Mtk_Droid_Tool will read it

make sure the device you are copying from is booted and can be read by the Droid Tool so the scatter file parsing is correct

parse the ROM

return to SP_Flash_Tool and load the scatter file that Mtk_Droid_Tool prepared in its backups directory

choose Download