ZC550KL Unlock Device App Does Not Unlock Bootloader

[pontigon9999]

Please tell us some basic information before asking for help:
Model Name: Asus Z010D (ZC550KL)
Firmware Version: WW_13.8.26.110_20180110
Rooted or not: Not
Frequency of Occurrence: Always
APP Name & APP Version (If your issue relates to the app): Unlock Device App
The program does not unlock the bootloader, writes (An unknown error occurs, which may be a network connection issue. please wait and try again later)

[gulage1989]

ASUS can no longer maintain it, but must keep the bootloader open

[Christine_ASUS]

Hi dangchibao6534
For ZB570TL, there will no longer have any maintenance. Sorry for any inconvenience this may cause. Thank you for your understanding and support.

[gulage1989]

You do not need maintenance. But must unlock for me

[game388]

why can't it be unlocked? at least allow the boot loader to be open to unlock older model phones without uploading the details