CustomDroid
Samsung

Samsung Galaxy M31

up to android 16latest android is 17
ro.product.devicem31

also sold as Galaxy M31 · SM-M315F

Actively maintained

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 · 03

The Samsung Galaxy M31 (codename m31) has 3 tracked custom ROMs on CustomDroid — including crDroid, AfterlifeOS, 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 6 Nov 2026.

Tick “compare” on two or three builds to see them side by side.

Show
Android
  • crDroidOfficialheavy customisation
    android 16v12.11github.com
    files and SHA-256 as published
    • build file · v12.11 · 1.22 GB · 22 Aug 2026
      crDroidAndroid-16.0-20260822-m31-v12.11.zip
      sha256 823083ef1869ecafb333dc71b4ebad9166911f0c2e56ab51317b3c735da3cca1

    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 6 Nov 2026
    Install guideForumDownload
    direct file from 22 Aug 2026
  • AfterlifeOSOfficial
    v8.4by PARBINDAR7vanillaraw.githubusercontent.com
    files and SHA-256 as published
    • vanilla · v8.4 · 1.15 GB · 23 Apr 2026
      AfterlifeOS_m31-8.4-ophelia-official_20260423-vanilla.zip
      sha256 7a6959238307022aeec5a3aab8d3cba70f38573ac56c88db62aaa84b2f8d50a6

    What AfterlifeOS 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 23 Apr 2026 — over 6 months ago · checked 6 Nov 2026
    Install guideForumDownload
  • Project ElixirDiscontinuednear-stock
    android 13v3.13by KrutosXprojectelixiros.com
    checked 6 Nov 2026
    Install guideForumDownload

RSS feed — subscribe to get new Samsung Galaxy M31 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

  1. Jul 2026
    crDroid, Project Elixir first tracked
  2. Sept 2026
    AfterlifeOS 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.