Most BLU devices use the SP Flash Tool . You would load the "Scatter" file from the extracted folder into the tool.
Ensure the MediaTek (MTK) or relevant USB drivers are installed on your PC. BLU.1306720WRZ.rar
The actual operating system data (system, boot, recovery, etc.). Most BLU devices use the SP Flash Tool
Use a tool like 7-Zip or WinRAR to get the folders inside. or remove screen locks. Possible Content
In the world of mobile repair and "flashing," these files are used to restore a phone to its factory settings, fix software "bricks" (where the phone won't turn on), or remove screen locks. Possible Content