Unable to unlock ZS570KL bootloader on two phones, non-pro 2.15GHz

edited October 8 in Others

Please tell us some basic information before asking for help:

  1. Model Name: Zenfone 3 Deluxe non-pro (ZS570KL) 2.15GHz
  2. Firmware Version: WW_Phone-15.0210.1810.73-0 (both phones)
  3. Rooted or not: not rooted
  4. Frequency of Occurrence: Every time
  5. APP Name & APP Version (If your issue relates to the app): "Unlock Device Tool" 9.1.0.3_180621

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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Both phones have been factory reset and the unlock app says "An unknown error occurs, which may be a network connection issue. please wait and try again later"

Serial numbers:

************

These phones have never been unlocked.

I would appreciate help in getting both of these unlocked.

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