How to Install Android 9.0 Pie on Samsung Galaxy Note 4 (Custom ROM)

Samsung never released Android 9.0 Pie for the Galaxy Note 4, which stopped at Android 6.0.1 Marshmallow. A custom ROM is the way to get it, and the Note 4 has a strong set of Pie ROMs, including a Pixel Experience build. This guide shows how to install one and root it.

Android 9 Pie brought gesture navigation, a redesigned interface and smarter battery management, and it runs well on the Note 4’s hardware.

What you get with Android 9 Pie

• Gesture-based navigation
• Adaptive Battery and Adaptive Brightness
• A redesigned settings menu and notification shade
• Digital Wellbeing with app timers
• Improved security and performance

Before you start

• This is for the Samsung Galaxy Note 4. Match the build to your variant (trlte Snapdragon or trelte Exynos).
• Install TWRP recovery first.
• Charge the phone to at least 50%.
• Back up your data. Installing wipes the phone.
• Install the Samsung USB drivers on your PC.

Download links

Pixel Experience already includes Google apps, so you usually don’t need a separate GApps package with it. Flash GApps only if your chosen ROM is a vanilla build without them.

How to install Android 9 Pie on the Galaxy Note 4

1. Copy the ROM zip (and GApps zip, if needed) to the phone’s storage.
2. Boot into TWRP: run adb reboot recovery, or hold Volume Up + Home + Power.
3. Tap Wipe, then Advanced Wipe, and tick System, Data, Cache and Dalvik/ART Cache. Leave Internal Storage unticked. Swipe to wipe.
4. Tap Install, select the ROM zip and swipe to flash it.
5. If your ROM needs GApps, reboot to system once, then boot back into recovery and flash the GApps zip.
6. Go to Reboot and select System.

The first boot can take several minutes. If it gets stuck, boot back into TWRP and repeat the wipe step, then flash again.

How to root the Galaxy Note 4

To root the ROM, flash the latest Magisk in TWRP right after it, then install the Magisk app to manage root. SuperSU is outdated and not recommended.

Frequently asked questions

Did the Galaxy Note 4 get Android 9 Pie officially?

No. Samsung’s updates ended at Android 6.0.1 Marshmallow. Pie comes only from community custom ROMs.

Is Android 9 Pie the newest version for the Note 4?

No. The Note 4 reaches Android 11 through LineageOS 18.1. Pie is a lighter option, but see our custom ROM list for newer builds.

Do I need a separate GApps package?

Pixel Experience includes Google apps already. Other ROMs may need a separate ARM Pie GApps package.

Do I need an unlocked bootloader?

Yes. You need an unlocked bootloader and TWRP first.