There were quirks. Secure Folder was gone. Samsung Pass showed an error about “tampered device.” But Leo didn’t care. He flashed a custom kernel, underclocked the big cores, and managed to squeeze 5 hours of screen-on-time – two more than he’d ever seen.
He hit “Reboot System.”
If you own the international Exynos variant (SM-G965F), you are in luck. Unlike its Snapdragon cousins (which have locked bootloaders), the Exynos chipset is a developer’s paradise. This guide will walk you through everything you need to know: why you should do it, the risks, the best ROMs available right now, and how to install them. samsung s9 plus exynos custom rom