: It is designed for use when the device cannot boot normally. Users physically short a specific "test point" on the device's circuit board to ground while powering it on, forcing it into an emergency download mode that the software can then detect. Device Unlocking
For very old Balong devices (Balong 710, ~2012):
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The tool acts as a bridge to send a bootloader file ( usbloader.bin ) to a device that is otherwise unresponsive or locked by a service provider. This is often the first step in unlocking devices like the (Airtel 4G Hotspot). Standard Usage Process