Unlocking the bootloader and flashing a custom ROM voids your warranty and carries an inherent risk of data loss or (in worst‑case scenarios) bricking your device. Proceed at your own risk. I am not responsible for any damage.
Install the APK on your Zenfone 9 (enable "Unknown Sources" in settings).
: ASUS reportedly disabled its official bootloader unlock tool for newer devices around August 2023 [13]. Without an unlocked bootloader, you cannot flash LineageOS or any other custom ROM [13, 16].
While LineageOS is stable, you might lose some of the specific "gimbal stabilization" optimizations found in the stock ASUS camera app. Many users recommend installing a GCam (Google Camera) port to maintain high photo quality. VoLTE/VoWiFi: asus zenfone 9 lineage os
However, like many ASUS devices, official software support is relatively short-lived compared to competitors. Once official security patches dry up, turning to the custom ROM community is the best way to keep this hardware safe, fast, and up to date.
High‑level installation steps
I can provide the exact terminal commands and troubleshooting steps tailored to your experience level. Share public link Unlocking the bootloader and flashing a custom ROM
Unlocking your bootloader initiates a factory reset. All photos, messages, apps, and local files will be permanently erased.
Installing on the ASUS Zenfone 9 Go to product viewer dialog for this item.
If you miss the bass boost, you can flash a Magisk module called Dirac_Sound_For_Zen9 . This re-injects the Asus AudioWizard libraries. It's not official, but it works well. Install the APK on your Zenfone 9 (enable
The ASUS Zenfone 9 is a compact flagship that punches well above its size: Snapdragon 8+ Gen 1, a bright 5.9-inch AMOLED, stereo speakers, and a surprisingly big battery in a small chassis. For a certain kind of enthusiast—someone who prizes control, longevity, and a stripped-down software experience—installing LineageOS on the Zenfone 9 is an appealing proposition. But is it the right move for most users? This editorial walks through the rewards, the trade-offs, and the practical realities.
: Due to the small user base and restricted unlocking, the custom ROM community for this specific model is largely inactive [11, 13]. Alternatives for Zenfone 9 Users