https://xdaforums.com/t/rom-unofficial-capricorn-15-crdroid-android-kernel-4-4.4316439/ crDroidAndroid-15.0-20250112-gapps-capricorn-v11.1.zip Important: TWRP will not work correctly with Android 15, in order to install the ROM you must extract the recovery image from the ROM zip and install it via fastboot command "fastboot flash recovery recovery.img" Boot into recovery mode and select "Apply update" then install the ROM via adb command "adb sideload rom.zip" If you want to use root, you can flash Magisk using the same process as flashing rom "adb sideload Magisk.apk" or you can use KernelSU boot image by flashing in fastboot "fastboot flash boot kernelsu.img" You can then install either Magisk Manager or KernelSU Manager to manage your root options. If you are coming from a 3.18 based ROM (which you probably will be) you MUST format your internal storage directly after flashing the ROM. Backup anything important first. Executed commands: fastboot flash boot kernelsu.img