Login or Join

Search

    BEST PICKS BY OUR SAMSUNG EXPERTS
    HOT RIGHT NOW
    Samsung Galaxy S26 Ultra Back Panel And Rear Cameras
    Order the King of Android!
    Latest reviews
    Samsung Galaxy AI
    Feel the power of Galaxy AI in the palm of your hands!
    BEST PICKS BY OUR SAMSUNG EXPERTS
    HOT RIGHT NOW
    TV
    Samsung QD-Display Explained
    Mihai Matei Explaining Samsung's QD-Display technology
    Trending
    Samsung-One-UI-8.5
    Everything about the latest version of One UI
    Trending
    Samsung Galaxy AI vs. Apple Intelligence
    20250304_090612
    Your all-in-one post!
    BEST PICKS BY OUR SAMSUNG EXPERTS
    hot right now
    vacuum cleaners
    Samsung-Digital-Appliances-Bespoke-AI-Jet-Ultra-Worlds-Most-Powerful-Cordless-Stick-Vacuum-Cleaner_main1
    Bespoke AI Jet Ultra
    Latest opinions

    Samsung Galaxy S21 (SM-G991B) - ATL - G991BXXU5CVF1 firmware

    Samsung Galaxy S21 firmware G991BXXU5CVF1 is the Android 12 build for the Samsung Galaxy S21 (model SM-G991B), released by Samsung for Spain (Vodafone) (ATL). It was built on 3 June 2022, carries the 2022-06-01 Android security patch, has changelist 24343029. The package combines system build G991BXXU5CVF1 (AP/PDA) with CSC build G991BOXM5CVF1 for the ATL region code. SamMobile added this file to the firmware archive on 15 June 2022.

    Country
    Model SM-G991B
    Product Code ATL
    Security Patch 2022-06-01
    OS Version Android 12
    PDA G991BXXU5CVF1
    CSC G991BOXM5CVF1
    Build Date 2022-06-3
    Changelist 24343029
    Join to Download Fast download

    G991BXXU5CVF1 for other regions and carriers

    The same G991BXXU5CVF1 build is also available for these SM-G991B regions:

    Other SM-G991B firmware for Spain (Vodafone) (ATL)

    All SM-G991B firmware for ATL · All Samsung Galaxy S21 (SM-G991B) firmware

    How to flash G991BXXU5CVF1 on the Samsung Galaxy S21 (SM-G991B)

    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 (G991BXXU5CVF1) is the Android system build; its last three characters encode the year, month and revision. CSC (G991BOXM5CVF1) is the region and carrier configuration, and CP is the modem firmware. The product code ATL identifies the region or carrier this package was made for (Spain (Vodafone)). 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.