8 Unlock Bootloader — Zenfone

Unlocking the bootloader will wipe all data on your phone (factory reset). It also voids your warranty (though Asus has historically allowed relocking) and may break OTA updates or widevine L1 (Netflix HD). Proceed at your own risk.

Use the volume keys to select "Yes" and press the power button to confirm.

adb reboot bootloader fastboot devices fastboot oem asus-csc_lk_unlock # Only if using unofficial method (not recommended)

Historically, ASUS required users to download an official companion APK to request an unlock. This app communicated with an external server ( dm.asus.com ) to sign a device-specific unlock token.