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    Samsung Galaxy J2 Core (SM-J260M) - UFN - J260MUBUAATD4 firmware

    Samsung Galaxy J2 Core firmware J260MUBUAATD4 is the Android 8.1.0 build for the Samsung Galaxy J2 Core (model SM-J260M), released by Samsung for Argentina (Movistar) (UFN). It was built on 17 April 2020, carries the 2020-04-01 Android security patch, has changelist 15008757. The package combines system build J260MUBUAATD4 (AP/PDA) with CSC build J260MOWTAATD1 for the UFN region code. The download is 816 MB and has MD5 checksum b5e1cfe52e4423c519655ccf0e6f4e7b, so you can verify the file after downloading. SamMobile added this file to the firmware archive on 16 September 2026.

    Country
    Model SM-J260M
    Product Code UFN
    Security Patch 2020-04-01
    OS Version Android 8.1.0
    PDA J260MUBUAATD4
    CSC J260MOWTAATD1
    Build Date 2020-04-17
    Changelist 15008757
    File size 816 MB (855,480,885 bytes)
    MD5 b5e1cfe52e4423c519655ccf0e6f4e7b
    Join to Download Fast download

    J260MUBUAATD4 for other regions and carriers

    The same J260MUBUAATD4 build is also available for these SM-J260M regions:

    Other SM-J260M firmware for Argentina (Movistar) (UFN)

    All SM-J260M firmware for UFN · All Samsung Galaxy J2 Core (SM-J260M) firmware

    How to flash J260MUBUAATD4 on the Samsung Galaxy J2 Core (SM-J260M)

    We recommend updating through Samsung's own tools: over-the-air (Settings › Software update) or Samsung Smart Switch on a PC. Flash the full firmware with Odin only when you are sure about the risks. A wrong region or a failed flash can brick the device, and SamMobile is not responsible for any damage.

    1. Download the firmware package above and extract the ZIP. It contains the AP (PDA), BL, CP and CSC files, plus a HOME_CSC file.
    2. Download and extract Odin on a Windows PC, and install the Samsung USB drivers if the PC does not detect the phone.
    3. Switch the device off and boot it into Download mode (usually Volume Up + Volume Down while connecting the USB cable, or Volume Down + Bixby + Power on older models).
    4. Open Odin. The ID:COM box turns blue when the device is connected.
    5. Load the files in their slots: BL, AP, CP and CSC. Use HOME_CSC to keep your apps and data, CSC to wipe the device.
    6. Leave Re-Partition unticked and click Start. The device reboots when Odin shows PASS. The first boot after a flash can take a few minutes.

    Step-by-step PDFs: 5-file firmware and 1-file firmware.

    What the build numbers mean

    PDA / AP (J260MUBUAATD4) is the Android system build; its last three characters encode the year, month and revision. CSC (J260MOWTAATD1) is the region and carrier configuration, and CP is the modem firmware. The product code UFN identifies the region or carrier this package was made for (Argentina (Movistar)); our list of Samsung CSC codes maps every code to its country and carrier. Flashing a package for a different product code changes carrier features and can be refused by the bootloader, so pick the one that matches the CSC shown under Settings › About phone › Software information.