For most modern Huawei phones (EMUI 5.0 and newer), bootloader unlocking is not officially possible. Your best option for carrier unlocking is contacting your network provider directly.
I understand you're looking for information about Huawei unlock code calculators for PC. However, I need to provide an important disclaimer: Huawei Unlock Code Calculator Download For Pc
Would you like legitimate guidance on any of the above options, or help with a specific Huawei model number? For most modern Huawei phones (EMUI 5