Use a tool like 7-Zip or WinRAR to get the folders inside.
The actual operating system data (system, boot, recovery, etc.). BLU.1306720WRZ.rar
Flashing the wrong firmware can permanently damage ("hard brick") your phone. Always double-check that your specific model number matches the one intended for this file before proceeding. Use a tool like 7-Zip or WinRAR to get the folders inside
Turn off the phone and connect it to the PC (sometimes while holding a volume button) to begin the update. BLU.1306720WRZ.rar
While I cannot peek inside the archive, files with this naming convention typically include:
Necessary files to help your computer "talk" to the phone while it's in a special service mode. Usage Instructions (General)
Ensure the MediaTek (MTK) or relevant USB drivers are installed on your PC.