: You will need 7-Zip or WinRAR to extract the .7z format.
: Navigate to the "Firmware Update" or "Upgrade" section of your device's web UI. Leshik_5396-5400.7z
: Use 7-Zip to extract the contents to a local folder. You should see files such as .bin , .fls , or specific scripts (e.g., zte_factorymode.py ). Connect the Device : : You will need 7-Zip or WinRAR to extract the