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    Samsung Galaxy A9 (SM-A920F) - COS - A920FXXU1ARKJ firmware

    Samsung Galaxy A9 firmware A920FXXU1ARKJ is the Android 8.0.0 build for the Samsung Galaxy A9 (model SM-A920F), released by Samsung for Greece (Cosmote) (COS). It was built on 14 November 2018, carries the 2018-10-01 Android security patch, has changelist 14589912. The package combines system build A920FXXU1ARKJ (AP/PDA) with CSC build A920FODX1ARKJ for the COS region code. The download is 4.0 GB and has MD5 checksum 74e294bb26e6c69c12fd28da57338bd3, so you can verify the file after downloading. SamMobile added this file to the firmware archive on 16 December 2018.

    Country
    Model SM-A920F
    Product Code COS
    Security Patch 2018-10-01
    OS Version Android 8.0.0
    PDA A920FXXU1ARKJ
    CSC A920FODX1ARKJ
    Build Date 2018-11-14
    Changelist 14589912
    File size 4.0 GB (4,312,504,515 bytes)
    MD5 74e294bb26e6c69c12fd28da57338bd3
    Join to Download Fast download

    How to flash A920FXXU1ARKJ on the Samsung Galaxy A9 (SM-A920F)

    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 (A920FXXU1ARKJ) is the Android system build; its last three characters encode the year, month and revision. CSC (A920FODX1ARKJ) is the region and carrier configuration, and CP is the modem firmware. The product code COS identifies the region or carrier this package was made for (Greece (Cosmote)); 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.