Disconnect and reconnect the physical battery connector to hard-reset the board logic. Re-assemble the structural components of the chassis.

If you’ve ever dealt with a hard-bricked Huawei phone (no recovery, no fastboot, only showing “USB SER” or not turning on at all), you know how frustrating it is. Most standard tools fail at this stage. That’s where comes in.

: Open the device housing and use metallic tweezers to bridge the hardware test point to the ground shield shield. This forces the device into COM 1.0 mode.

Click the button (often represented by a green arrow icon) at the top of the interface.

Select the correct number that matches what you saw in the Device Manager. Click Apply or OK to return to the main screen.

Historically, IDT is a proprietary software utility used internally by Huawei repair centers and manufacturing facilities to perform . Specifically, IDT 20 operates by communicating directly with the device via the USB COM 1.0 port , bypassing the operating system entirely. This distinguishes it from other tools that rely on an active Fastboot or ADB connection.

: Look for feedback from others who have used the tool with a similar device. Forums like XDA Developers often have threads where users share their experiences.

| Feature / Tool | | PotatoNV | HCU Client | | :--- | :--- | :--- | :--- | | Primary Purpose | Deep Repair / Unbrick | Bootloader Unlock | IMEI / Network Repair | | Hardware Level | Raw NAND / COM Port | USB Bootloader Mode | Fastboot / ADB | | Requires Bootloader Unlock? | No | Yes (for unlocking, but operates via exploit) | Sometimes (depends on security patch) | | Hard Brick Recovery | Yes (Essential tool) | No | No | | User Difficulty | Expert (Requires disassembly) | Intermediate | Intermediate | | Cost | Free (Often bundled with paid firmware) | Open Source / Free | Paid (Credit system) |

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