If the generated code returns an "Incorrect Code" error, stop immediately. Your firmware may have a customized carrier salt value that the standard V4/V5 calculator cannot predict.

Huawei uses different algorithms (Algo) to protect its devices based on their manufacturing date and firmware version.

Supports a massive range of Huawei routers, USB modems (E-series), and mobile Wi-Fi devices (E5-series).

Generates the correct Network Control Key (NCK) or Simlock code in seconds.

The V5 algorithm was extracted from router firmware via reverse engineering, but it often requires a proprietary "hash table" to generate valid codes.