CustomDroid
Samsung

Samsung Galaxy A51

Samsung Exynos 9611released 2019up to android 16latest android is 17
ro.product.devicea51

also sold as Galaxy A51 · SM-A515F · SM-A515U · SM-A515U1 · SM-A515W · SM-A515X · SM-S515DL

Actively maintained

Released 2019, newest ROM build 1 month ago (2 ROMs still current). A phone that still gets updates keeps going long after its manufacturer stops.

Hardware

SoC
Samsung Exynos 9611
Architecture
arm64
RAM
4GB / 8GB
Storage
64GB / 128GB / 256GB
Screen
2400x1080 · Super AMOLED
Released
2019

Specs from postmarketOS wiki (CC BY-SA 4.0).

ROMs · 03

The Samsung Galaxy A51 (codename a51) 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 21 Sept 2026.

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

Show
Android
  • crDroidOfficialheavy customisation
    android 16v12.11by cat658011github.com
    last build 22 Aug 2026 · checked 21 Sept 2026
    Install guideForumDownload
    direct file from 22 Aug 2026
  • AfterlifeOSOfficial
    v8.4by PARBINDAR7vanillaraw.githubusercontent.com
    files and SHA-256 as published
    • vanilla · v8.4 · 1.16 GB · 23 Apr 2026
      AfterlifeOS_a51-8.4-ophelia-official_20260423-vanilla.zip
      sha256 fe1dc0dd18b2b1c304ab708e1dc44e58bab0d777a18500a31e0e926e45767f89

    What AfterlifeOSpublished 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 · checked 21 Sept 2026
    Install guideForumDownload
  • Project ElixirDiscontinuednear-stock
    android 13v3.13by KrutosXprojectelixiros.com
    checked 21 Sept 2026
    Install guideForumDownload

RSS feed — subscribe to get new Samsung Galaxy A51 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.

This is a Exynos device, so on Windows you'll want the Samsung Android USB driver before your computer will see it in fastboot. Which USB drivers you need.

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.