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?