Unable to unlock bootloader on Zenfone 3?

[tepwu]

Model Name: Zenfone 3 (ZE552KL)
Firmware Version: OPR1.170623.026.WW_Phone-15.0410.1807.75-0 (Build number)
Rooted or not: Not Rooted
Frequency of Occurrence: High
APP Name & APP Version (If your issue relates to the app): Unlock Device Tool (Official Bootloader Unlock) ZE552KL_SIGNED_UnlockTool_9.1.0.7_180912_fulldpi
In addition to information above, please also provide as much details as you can, e.g., using scenario, what troubleshooting you've already done, screenshot, etc.
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I've been trying to unlock my Zenfone 3 through the official ASUS unlock tool, but I am receiving this error when I click on the "Press to unlock your device" button. I have never rooted or unlocked the bootloader on this device before. Could I get some help on this?

[vtrguimaraes]

Christine_ASUS

Hi friends

The latest unlock tool of ZE552KL is now available on our official website! Please check the link below

https://www.asus.com/Phone/ZenFone-3-ZE552KL/HelpDesk_Download/

View post

What about Ze550kl?

[Christine_ASUS]

Hi vtrguimaraes
Thank you for your asking. I have forwarded the information to the relevant department. We will keep you updated and your consideration will be very much appreciated.

[Christine_ASUS]

Hi vtrguimaraes
For ZE550KL, there will no longer have any maintenance. Sorry for any inconvenience this may cause. Thank you for your understanding and support.

[ericandersonbyk]

oh nice info, thank you