Choose 'Download Only' (do NOT use 'Format All + Download' unless absolutely necessary, as it may erase your IMEI/Serial number). Initiate Flash: Click the 'Download' button (green arrow).
Open flash_tool.exe from the extracted SP Flash Tool folder. Download K0706B Firmwar rar
Ensure the device is fully powered off before connecting. Try a different USB port (preferably a USB 2.0 port on the back of the PC). Choose 'Download Only' (do NOT use 'Format All
Power off your device completely. Hold the Volume Down (or Volume Up) button and connect it to the PC via USB. Download K0706B Firmwar rar
The K0706B_Firmware.rar file containing the scatter.txt file and binary images.
Since this is generic hardware, the firmware is usually hosted on community-driven repositories or manufacturer support pages: