Download Huawei Modem Code Writer V1.0b May 2026

If you cannot get V1.0b to work, or if your modem is newer (LTE/4G), consider these modern alternatives:

Code Writer V1.0b requires a direct COM port connection.

At its core, Huawei Modem Code Writer is a low-level firmware utility. Unlike the official Huawei dashboard ("Mobile Partner"), this tool communicates directly with the modem’s bootloader to write specific data partitions. Download Huawei Modem Code Writer V1.0b

V1.0b is a specific version that became famous for several reasons:

The primary purpose of this tool is to flash an unlock code (NCK) to the modem’s permanent memory, converting a carrier-locked modem (e.g., Vodafone, T-Mobile, AT&T) into a universal device that accepts any SIM card. If you cannot get V1

Huawei Modem Code Writer V1.0b is a small Windows utility used to write or change unlock/firmware-related codes on certain Huawei USB modems (also called dongles). Typical uses: writing network unlock codes, restoring IMEI or configuration after firmware changes, or flashing specific settings. (Exact supported models and capabilities vary by version.)

Your PC must recognize the modem in “PC UI” mode or “COM port” mode. Code Writer V1

Once you have safely downloaded the tool, follow these instructions carefully. This guide assumes you are unlocking a modem—the most common use case.