The "top" calculators often produce 5 different codes (NCK, NSCK, SPCK, CCK, and REGCK). You need the (Network Code Key).
: The software takes the IMEI and applies the specific mathematical hash to output an 8-digit unlock code Alternative Tools and Services eggbone huawei unlock code calculator top
Assuming you have located a legitimate "top" version of the software (be wary of viruses), follow this guide: The "top" calculators often produce 5 different codes