Tecno Spark Go 1 (KL4) doesn't allow bootloader unlocking

[IsHacker003]

I just wanted to inform about this. I turned on OEM unlocking successfully after a long wait of 2 weeks, but apparently the unlock command has been completely removed from fastboot. fastboot flashing unlock says "unknown cmd" and fastboot oem unlock just says FAILED. The menu where you have to press the volume up button doesn't even appear. The phone is running HiOS Android 14 Go Edition and it's on the latest version. It has Unisoc Tiger T615 CPU. If you have any solution for unlocking the bootloader on this device, please reply.