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Bootloader unlock error (AGAIN)

ZF Model: ZC554KL
Firmware/APP Version: nougat
Frequency of Occurrence: all the time
Rooted: No
APP Name: UNlock tool

Okay so I bought a new zenfone max plus again so I can unlock the bootloader. But when i try to unlock the bootlaoder it gives me the same error again! Im tired of this why dont you just add the allow oem unlocking option in the developer settings?!

Star III
Hi lucena.tyronscott Good day Can you help me confirm that phone is up to date? The latest version for ZB570TL is WW-15.02.1810.380. Please kindly show me the screenshot of error message when you encounter this problem. If you still cannot unlock, please provide your phone serial number to be via private message, thank you:)

I still cannot unlock. I have sent the serial number