Download the ROM zip file, the correct GApps package (if Google apps are not built into the ROM), and the latest Magisk zip (optional, for root access) onto your phone's external SD card or a USB OTG drive. Step 2: Boot into Recovery Mode
: For those who prefer the Samsung aesthetic, DuhanROM V3.20 (released mid-2025) provides a functional port of One UI 6.1.1 to the Note 9.
: Known for achieving "Strong Integrity" pass, which is beneficial for high-security applications. DerpFest 15 : Status : AOSP-based community stable ROM. crownlte custom rom updated
Go to . Select Dalvik / ART Cache, Cache, System, and Data . Swipe the slider at the bottom to confirm. Note: If you are upgrading from stock firmware or a completely different ROM, you may also need to select "Format Data" and type "yes" to remove encryption. Step 4: Flash the Custom ROM
Your device’s bootloader must be unlocked via the developer options menu. Download the ROM zip file, the correct GApps
: Passed SafetyNet out of the box, making banking apps easier to run. Update Status : Frequent feature updates and stable builds. 3. Noble ROM (One UI Ports)
I can provide the specific download links and tailored troubleshooting tips for your preferred setup. Share public link DerpFest 15 : Status : AOSP-based community stable ROM
Several development teams actively maintain software for the Exynos 9810-powered Note 9. Depending on your preferences, you can choose between pure Google experiences or feature-rich alternative operating systems. 1. LineageOS (The Gold Standard)