Before we dive into the list of ROMs, let's address the "why." MIUI is not a bad OS, but it is heavy. For every Redmi Note 9S user, here is why you should consider switching:
Here is the curated list of the most stable and feature-rich ROMs for your device. All these are actively maintained. redmi note 9s custom rom
The developer community for the Redmi Note 9S remains active. Below are the most stable and popular options currently available. Before we dive into the list of ROMs, let's address the "why
You need OrangeFox or TWRP recovery installed. redmi note 9s custom rom
LineageOS is the gold standard of custom ROMs. It is the successor to the legendary CyanogenMod and offers a pure AOSP experience with subtle, useful enhancements.