Unable to unlock bootloader on Zenfone 3?

tepwutepwu Level 1

  1. Model Name: Zenfone 3 (ZE552KL)
  2. Firmware Version: OPR1.170623.026.WW_Phone-15.0410.1807.75-0 (Build number)
  3. Rooted or not: Not Rooted
  4. Frequency of Occurrence: High
  5. 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.


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?


  • Dear friend

    After checking with the relevant team, the issue is now under investigation. For people who purchased the device from authorized reseller, first hand device and never rooted or unlocked your device, please wait for my reply. Sorry for any inconvenience it may caused.

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