Have you tried any unlock method? Share your experience in the comments below (but please, no spam links to fake calculators).
Downloading "free" versions of these calculators from unverified sources carries significant risks: UNLOCK CODE - HUAWEI Community 11 Apr 2019 —
: Once a correct code is accepted, the device typically remains unlocked permanently, allowing the use of any SIM card. How to Use the Calculator Retrieve IMEI : Find your device's 15-digit IMEI number. Generate Code : Input the IMEI into the Huawei Code Calculator or a similar application to receive the NCK. Insert New SIM
Huawei officially stopped providing bootloader unlock codes in 2018. There is currently no official free "calculator" provided by the manufacturer.