: Do not disconnect the cable or power off the PC during this stage, as it may permanently damage the motherboard. Common Troubleshooting
| Supported Model | Processor | Typical Firmware Size | | :--- | :--- | :--- | | | Kirin 710 | N/A | | Huawei COL-L29 | Kirin 970 | Up to 1.2 GB | | Huawei JNY-L02A | Kirin 810 | Up to 6 GB | | Huawei INE-L21 / L22 | Kirin 710 | Up to 1.4 GB | | Huawei LND-AL40 | QCOM SD 450 | Up to 1.2 GB | | Huawei VOG-L29 / L09 | Kirin 980 | Up to 2.4 GB | | Honor 7c | (depends on variant) | (depends on variant) | | Huawei Nova 3e | (depends on variant) | (depends on variant) | | Huawei Mate 20 Lite | Kirin 710 | (depends on variant) |
If you are unable to use IDT 2.0, or if it seems too complex, consider these alternatives: huawei flash tool idt 2.0
Download and extract the authenticated software package.
Essential for Windows to recognize the phone in test point mode. : Do not disconnect the cable or power
This indicates a mismatch between the Board Software version and your specific device hardware variant. Verify your phone's exact mainboard model. Safety and Risks Disclaimer
Standard consumer update files ( update.app ) will not work. You need a dedicated Board Software package containing .xml configuration maps. Step-by-Step Installation and Setup This indicates a mismatch between the Board Software
: Often requires the device to be put into "Test Point" mode—shorting specific hardware points on the motherboard—to allow the computer to detect the chipset as a COM port. Preparation Requirements
Using Board Software for the wrong model or region (e.g., C185 vs. C432) can cause permanent hardware damage.