Imagine your Huawei device has a secret backdoor bootroom (the ). IDT speaks that ancient, low-level language. It forces the CPU to accept a loader over USB before the main flash is even checked. This is lower than Download Mode — it’s the hardware’s last gasp.
: Communicates via USB COM ports (often requiring a "Test Point") to write data directly to the device's storage. Prerequisites for Flashing Before you begin, ensure you have the following: The Correct Board Software
The phone must be connected in a specific state where the PC identifies it as a USB COM 1.0 device