The code "ZL782-MB-V2.1" is not a model number for a finished consumer product. It is a .
A massive database for mobile firmware. Search for "ZL782" on . Note that some files may require a premium account. GSM Forum: zl782-mb-v2.1 firmware download
website and go to the download. section you will need to download two files one the firmware file and two the calibration upgrade. 54s YouTube · ZHIYUN-TECH The code "ZL782-MB-V2