In the early days of mobile modems, Huawei used simple algorithms (V1, V2, and V3) to lock devices to specific network carriers. These codes, often called , were relatively easy to generate using just the device's IMEI. Publicly available "calculators" allowed users to unlock their modems instantly, letting them use any SIM card. The Arrival of the "Unbreakable" Algos (2015)

By understanding the inner workings of these algorithms, you empower yourself to make an informed choice—and maybe save $50 on unlocking fees.