Ensure the MediaTek (MTK) or relevant USB drivers are installed on your PC.
While I cannot peek inside the archive, files with this naming convention typically include: 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. Ensure the MediaTek (MTK) or relevant USB drivers