Congratulations! Once the bootloader is unlocked, you have a world of possibilities:
Download the from the Android Developer website. Step 1: Enable Developer Options How to Unlock Bootloader in HUAWEI P30 Lite phone
HCU Client is a Windows-based software that reads the bootloader unlock code directly from HUAWEI’s server via a test point connection. Congratulations
If you need to relock for warranty or security, the command is fastboot oem relock YOUR_UNLOCK_CODE . Relocking with non-stock software will brick the phone. Only relock after flashing the original stock firmware via dload method. Congratulations! Once the bootloader is unlocked