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 S20 Ultra (SM-G988B) - TOP - G988BXXU3ATG4 firmware

    Samsung Galaxy S20 Ultra firmware G988BXXU3ATG4 is the Android 10 build for the Samsung Galaxy S20 Ultra (model SM-G988B), released by Samsung for Serbia (VIP) (TOP). It was built on 7 July 2020, carries the 2020-07-01 Android security patch, has changelist 18862671. The package combines system build G988BXXU3ATG4 (AP/PDA) with CSC build G988BOXM3ATG9 for the TOP region code. SamMobile added this file to the firmware archive on 27 July 2020.

    Country
    Model SM-G988B
    Product Code TOP
    Security Patch 2020-07-01
    OS Version Android 10
    PDA G988BXXU3ATG4
    CSC G988BOXM3ATG9
    Build Date 2020-07-7
    Changelist 18862671
    Join to Download Fast download

    G988BXXU3ATG4 for other regions and carriers

    The same G988BXXU3ATG4 build is also available for these SM-G988B regions:

    Other SM-G988B firmware for Serbia (VIP) (TOP)

    All SM-G988B firmware for TOP · All Samsung Galaxy S20 Ultra (SM-G988B) firmware

    How to flash G988BXXU3ATG4 on the Samsung Galaxy S20 Ultra (SM-G988B)

    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 (G988BXXU3ATG4) is the Android system build; its last three characters encode the year, month and revision. CSC (G988BOXM3ATG9) is the region and carrier configuration, and CP is the modem firmware. The product code TOP identifies the region or carrier this package was made for (Serbia (VIP)). 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.