Click the Setting button on the interface. When prompted for a password, leave the field completely blank and click OK .
Before downloading ChipYC2019, you must verify that your USB drive actually uses a FirstChip controller. Using the wrong software can permanently "brick" the device.
The computer detects the USB drive letter, but clicking it reveals "0 bytes used, 0 bytes free."
Mass production tools contain low-level hardware drivers that trigger false positives in Windows Defender and third-party antivirus suites. Turn off real-time protection before extracting the archive. firstchip mptools chipyc2019
This article provides a comprehensive, technical deep dive into what means, how it works, and why it has become a critical keyword in the firmware repair ecosystem.
| Flash Vendor | Flash ID Code | Capacity | Technology | |---|---|---|---| | SanDisk | 453C98B3766B / 453C98B37672 | 32GB | TLC | | WDC (Western Digital) | 453E9803766C | 64GB | TLC | | Micron (美光) | 2CD31C32C600 | 1GB | QLC | | Micron (美光) | 2CC41832A200 | 64GB | TLC |
Low-cost USB 2.0 flash drives that exhibit "0GB Capacity," "No Media," or "Write Protected" errors . Click the Setting button on the interface
Click the large Start button on the right-hand panel of the main window.
Re-uploads the necessary code onto the microcontroller to fix "Device Not Recognized" errors.
Connect the drive directly to a motherboard USB 2.0 port on the back of your PC. Avoid external USB hubs or USB 3.0 ports, as they can cause data timeouts during firmware burning. Step-by-Step Guide to Repairing a USB Drive Step 1: Launching the Software Using the wrong software can permanently "brick" the device
Watch the progress bar. The utility will erase the NAND chip, check for bad sectors, write clean controller firmware, and format the drive.
Set the Error Correction Code values according to your NAND quality (leaving it on Auto is recommended for beginners).