Choose the correct COM port assigned to your device (check Device Manager if you are unsure).
| Source | File Type | Key Notes | | :--- | :--- | :--- | | | .rar / .zip | 407KB. Confirmed to contain both English and Chinese versions | | 21ic Electronic Forum | .rar | Includes network debugging features and ISP download support | | CSDN Resources | .rar / .zip | Weighs approx 408KB, known for high stability | Sscom V5.13.1 English Version Download High Quality
Last updated: October 2025 – This guide is verified for Windows 10/11 and compatible USB-to-serial bridges. Choose the correct COM port assigned to your
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: Save lists of complex commands or AT protocols, allowing you to sequence and execute strings with a single click.