Samsung Galaxy M31s
m31salso sold as Galaxy M31s · SM-M317F
Newest ROM build 2 months ago (1 ROM still current). A phone that still gets updates keeps going long after its manufacturer stops.
Hardware
No hardware specs for this device yet.
ROMs · 02
The Samsung Galaxy M31s (codename m31s) has 2 tracked custom ROMs on CustomDroid — including crDroid, Project Elixir, running up to Android 16. Each listing links to the project's own download and install guide, and was last checked against the projects' catalogues on 5 Nov 2026.
Samsung's security updates for this model ended in Feb 2024, so a maintained custom ROM is how it still gets Android security patches. endoflife.date · what end-of-life means
Tick “compare” on two or three builds to see them side by side.
- crDroidOfficialheavy customisation
files and SHA-256 as published
- build file · v12.11 · 1.22 GB · 22 Aug 2026crDroidAndroid-16.0-20260822-m31s-v12.11.zipsha256 456579832d78a9f9d0dc3dcb209b94cfd434af6224ac38e8a3c400ff26632985
What crDroid published when we last checked. Verify the file you download against the hash on the project's own page; if they differ, don't flash it.
last build 22 Aug 2026 · checked 5 Nov 2026 - build file · v12.11 · 1.22 GB · 22 Aug 2026
RSS feed — subscribe to get new Samsung Galaxy M31s builds in your reader · JSON
Before you flash
Flashing generally means unlocking the bootloader, booting a custom recovery, wiping, then installing the ROM. Exact steps differ per device and ROM, so follow the Install guide for the one you pick, and back up first. Check what can break (banking apps, DRM, carrier features) and how to get back to stock before you start. Why flash a custom ROM · All guides
Custom recovery for this device: TWRP. Flash the one your chosen ROM's guide asks for — common recovery errors.
Timeline
- Jul 2026crDroid, Project Elixir first tracked
Dates show when CustomDroid first indexed each ROM for this device, not when support originally launched.
ROM availability and links come from each project. CustomDroid indexes builds, it doesn't mirror them — always download from the official project, verify the file's hash/signature, confirm it matches your exact codename, and back up before flashing.