I copied the code and pasted it into the command prompt, and then pressed Enter. The device screen went blank for a few seconds before displaying a confirmation message: "Unlocking bootloader succeeded!"
: As of early 2026, there is no reliable, free software-based workaround or "exploit" to bypass the requirement for ASUS's official server handshake. Forums - Linus Tech Tips Key Considerations Before Attempting If a method becomes available, keep these risks in mind: : Unlocking the bootloader typically voids your manufacturer warranty
The official ASUS unlock tool is the safest method when it works, but many users have reported server issues and have had to rely on community methods found on XDA. If you decide to proceed, back up your data, understand the risks, and be prepared to troubleshoot.
: Unlocking the bootloader triggers a mandatory factory reset. zenfone 9 unlock bootloader
For the most current information and support, visit the —this is where the community shares the latest unlock methods, custom ROMs, and troubleshooting tips.
(Mac/Linux can be used, but this guide uses Windows). USB Cable: The original cable is recommended.
: Reports indicate that some official ASUS service centers in Europe may offer to unlock bootloaders for a fee (roughly $200 USD / €185 EUR I copied the code and pasted it into
After the reboot, check your bootloader status by booting into fastboot mode:
Do you need an additional section covering after unlocking?
[August 2022] ───► ASUS releases official Zenfone 9 Unlock APK & Kernel Sources. [Mid-2023] ───► Unlocking servers go offline. Support claims "temporary maintenance." [Late 2023] ───► Internal support emails reveal the deactivation is permanent. [Early 2024] ───► Devs create a brief workaround via mitmproxy; ASUS patches it instantly. [Present Day] ───► Official tool remains dead; device faces End-of-Life (EOL) update limits. If you decide to proceed, back up your
I had heard that unlocking the bootloader could be a complex process, but I was determined to take on the challenge. I began by searching online for tutorials and guides specific to the Zenfone 9. After hours of research, I stumbled upon a reliable forum thread that outlined the steps.
: Standard fastboot protocols like fastboot oem unlock or fastboot flashing unlock do not work natively on retail Zenfone 9 units without the authorization handshake previously provided by the official application. 🕒 Timeline of the ASUS Bootloader Controversy