requires communication with an ASUS verification server to complete the unlock process via its APK, "offline" or standard fastboot flashing unlock commands typically do not work.
As of May 2026, the status of the is a critical point of frustration for the enthusiast community. While the phone was initially launched with a dedicated unlock tool, ASUS has since discontinued official support, leaving users with very few options for custom ROM installation. Current Official Status (May 2026) zenfone 9 unlock bootloader
In late 2025, ASUS confirmed that for models released in 2023 or earlier, the tool is permanently discontinued due to "stability considerations". requires communication with an ASUS verification server to
Unlocking the bootloader (if successful) still results in a permanent loss of warranty and may cause the device to fail Play Integrity or SafetyNet checks, affecting banking apps. Attempting the Unlock (Legacy Method) Current Official Status (May 2026) In late 2025,
ASUS has officially for all mobile devices, including the