Turn off the phone and connect it to the PC (sometimes while holding a volume button) to begin the update.
While I cannot peek inside the archive, files with this naming convention typically include: BLU.1306720WRZ.rar
Necessary files to help your computer "talk" to the phone while it's in a special service mode. Usage Instructions (General) Turn off the phone and connect it to
Most BLU devices use the SP Flash Tool . You would load the "Scatter" file from the extracted folder into the tool. the process usually looks like this:
Use a tool like 7-Zip or WinRAR to get the folders inside.
The actual operating system data (system, boot, recovery, etc.).
If you are planning to use this file to repair a device, the process usually looks like this: