Unlock Bootloader — Zenfone 9

The phone will reboot. During this process, the bootloader will be unlocked, and the device will perform a factory reset. What if the Official Tool Doesn't Work?

This will factory reset your phone again. Ensure you are on 100% stock firmware before relocking, or you will hard-brick the device. zenfone 9 unlock bootloader

, ASUS removed this tool from their website and shut down the servers required for it to function. While there were initial promises that the service would return, it remains unavailable for self-service as of early 2026. Forums - Linus Tech Tips 2. The New "Paid Service" Model The phone will reboot

Use apps to under-volt or over-clock the Snapdragon 8+ Gen 1 for better battery life or raw performance. Conclusion the bootloader will be unlocked