No special cables are typically needed beyond a standard USB connection. How to Use Huawei Modem Unlocker v 5.8.1 Follow these steps to unlock your device safely: Unlock Huawei Modems - 3Community - Three Ireland

Automatically calculates both the Unlock Code (to free the SIM slot) and the Flash Code (required for firmware updates).

While primarily for Huawei, similar tools often support a range of older models like the E156, E1552, and E173.