{
  "id": "samsung/galaxy-s4",
  "vendor": "Samsung",
  "model": "Galaxy S4",
  "aliases": [
    "Galaxy S4 (SGH-I337)",
    "jflteatt",
    "Galaxy S4 (SCH-R970, SPH-L720)",
    "jfltespr",
    "Galaxy S4 (SCH-I545)",
    "jfltevzw",
    "Galaxy S4 (GT-I9505, SGH-I337M, SGH-M919/V)",
    "jfltexx",
    "samsung-jflte"
  ],
  "category": "phone",
  "status": "open-firmware",
  "projects": [
    {
      "name": "LineageOS, discontinued after 18.1 (jflteatt)",
      "url": "https://wiki.lineageos.org/devices/jflteatt/",
      "kind": "firmware",
      "license": "Apache-2.0"
    },
    {
      "name": "LineageOS, discontinued after 18.1 (jfltespr)",
      "url": "https://wiki.lineageos.org/devices/jfltespr/",
      "kind": "firmware",
      "license": "Apache-2.0"
    },
    {
      "name": "LineageOS, discontinued after 18.1 (jfltevzw)",
      "url": "https://wiki.lineageos.org/devices/jfltevzw/",
      "kind": "firmware",
      "license": "Apache-2.0"
    },
    {
      "name": "LineageOS, discontinued after 18.1 (jfltexx)",
      "url": "https://wiki.lineageos.org/devices/jfltexx/",
      "kind": "firmware",
      "license": "Apache-2.0"
    },
    {
      "name": "Nura/postmarketOS (testing, samsung-jflte)",
      "url": "https://gitlab.postmarketos.org/postmarketOS/pmaports/-/tree/main/device/testing/device-samsung-jflte",
      "kind": "firmware",
      "license": "GPL-3.0"
    },
    {
      "name": "Nura/postmarketOS wiki: Samsung Galaxy S4 (samsung-jflte)",
      "url": "https://wiki.nura.eco/wiki/Samsung_Galaxy_S4_(samsung-jflte)",
      "kind": "other",
      "license": "CC-BY-SA-4.0"
    }
  ],
  "install": [
    {
      "project": "LineageOS",
      "method": "other",
      "guide": "https://wiki.lineageos.org/devices/jflteatt/install/",
      "difficulty": "medium",
      "tools": [
        "Computer with adb",
        "USB cable"
      ],
      "notes": "No longer maintained: there are no official builds, the guide has you build LineageOS from source. The stock system must be rooted first; the recovery is then written from the device itself. Installing wipes all data on the device: back it up first."
    },
    {
      "project": "LineageOS",
      "method": "usb-bootloader",
      "guide": "https://wiki.lineageos.org/devices/jfltespr/install/",
      "difficulty": "medium",
      "tools": [
        "Computer with adb and samloader-rs",
        "USB cable"
      ],
      "reversible": "partial",
      "notes": "No longer maintained: there are no official builds, the guide has you build LineageOS from source. Uses Samsung's Download mode; OEM unlock must be enabled in Developer options where the device has it. Installing wipes all data on the device: back it up first."
    },
    {
      "project": "LineageOS",
      "method": "other",
      "guide": "https://wiki.lineageos.org/devices/jfltevzw/install/",
      "difficulty": "medium",
      "tools": [
        "Computer with adb",
        "USB cable"
      ],
      "notes": "No longer maintained: there are no official builds, the guide has you build LineageOS from source. The stock system must be rooted first; the recovery is then written from the device itself. Installing wipes all data on the device: back it up first."
    },
    {
      "project": "LineageOS",
      "method": "usb-bootloader",
      "guide": "https://wiki.lineageos.org/devices/jfltexx/install/",
      "difficulty": "medium",
      "tools": [
        "Computer with adb and samloader-rs",
        "USB cable"
      ],
      "reversible": "partial",
      "notes": "No longer maintained: there are no official builds, the guide has you build LineageOS from source. Uses Samsung's Download mode; OEM unlock must be enabled in Developer options where the device has it. Installing wipes all data on the device: back it up first."
    },
    {
      "project": "Nura/postmarketOS",
      "method": "usb-bootloader",
      "guide": "https://wiki.nura.eco/wiki/Samsung_Galaxy_S4_(samsung-jflte)",
      "difficulty": "medium",
      "tools": [
        "Computer with pmbootstrap and fastboot",
        "USB cable"
      ],
      "notes": "Uses the bootloader's fastboot mode. The bootloader must be unlocked first, which wipes the device. Installing replaces the stock system: back up your data first. This is a testing port: what works varies, check the device page."
    }
  ],
  "provenance": {
    "sources": [
      "lineageos",
      "postmarketos"
    ]
  },
  "updated": "2026-10-17",
  "identifiers": {
    "sku": [
      "SGH-I337",
      "SCH-R970/C/X",
      "SPH-L720",
      "SCH-I545",
      "GT-I9505",
      "SGH-I337M",
      "SGH-M919",
      "SGH-M919V"
    ],
    "chips": [
      "Qualcomm APQ8064T Snapdragon 600"
    ]
  },
  "interfaces": [],
  "claims": [],
  "verification": []
}