The kernel is a central component of most computer operating systems. It acts as bridge between applications and the hardware and also manages the systems's resources.

Android uses a Linux kernel. Like many things in Android, this one can also be customized: different kernels offer different advantages – e.g. better performance or more stability, support for additional features, overclocking/undervolting etc.

You can flash a different kernel to your device (the kernel is part of the boot image/zImage). But be careful: the kernel must be compatible with your ROM. Always make a before flashing – as with a wrong kernel you might end up in a .

For further details, please see: