Lightweight custom code stops background apps from draining your battery.

This guide assumes you have an unlocked bootloader and TWRP installed as covered in the prerequisites.

Installing a custom ROM on your Galaxy J4+ can be a bit tricky, but with the right guidance, you can do it safely and successfully. Here are the general steps:

While custom ROMs for the Exynos 7570 platform are mature, you may run into specific legacy issues:

Essential for any modification; this will wipe all data.