Unlock bootloader unofficially for ZenFone 3 Zoom ZE553KL

Model: ZE553KL(Zoom)
RAM: 4GB
Firmware/App Version: 7.1.1
Location:
Frequency of Occurrence:
Rooted: No
App Name:
Description: Help needed unlocking bootloader

I'm failing to unlock bootloader of my phone (Asus Zenfone 3 Zoom ZE553KL) with official apk from asus website. It says about network error.
I've tried:
1. Upgrading to the latest firmware (Oreo - Android 8) - same issue
2. Downgrading to Nougat, Marshmellow - same issue.
3. Enabling ALL the check-marks when first setting up the device - same issue.

Question: does anybody know how to unlock bootloader other them through non-working for me official apk?

Comments

  • diogoapdiogoap Level 1

    olá sou do Brasil 🇧🇷, fiz o desbloqueio de bootloader por engano, como faço para bloquear de novo e voltar a ter atualização?

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