: Navigate to the "Firmware Update" or "Upgrade" section of your device's web UI.
: 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 : Leshik_5396-5400.7z
: Before proceeding with any firmware modifications, back up your current device settings through the admin interface . Installation Steps : Navigate to the "Firmware Update" or "Upgrade"