Boot into TWRP by choosing Recovery in your power menu if you have a custom ROM. Step 1: Make a Full BackupĪs with any system mod, having a working backup of your phone is important. They are usually made using Google's own source code released to developers, then built with mods added in. Whenever anything is done, like turning down your screen brightness or making a call, Android talks to the kernel and then it connects it to the phone's hardware.Ī custom kernel has been modded with additional features and speed improvements not found on stock versions. Custom Kernels 101Ī kernel is essentially the central nervous system of your phone. You must have your bootloader unlocked with TWRP (or another custom recovery) installed so the custom kernel can be flashed. Make sure you have all the requirements met before you continue on with this tutorial.

Xposed Installer (optional, only for custom wake and app gestures).

Custom recovery with an unlocked bootloader.

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