Samsung Galaxy A8s G8870ZCU7CUI1
SM-G8870 1 country Android 10

Samsung Galaxy A8s G8870ZCU7CUI1 Firmware

Samsung Galaxy A8s G8870ZCU7CUI1 is an Android 10 firmware for China (CHC). It is the same firmware configured per region and carrier (CSC). Find your country below, verify the file and download for free. Compared with the previous build G8870ZHU7CUI1, Android and the bootloader binary are unchanged, so you can switch between the two in both directions. A newer build for SM-G8870 is available: G8870ZHU7CZB1.

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Android 10
OS Version
2021-09-30
Build Date
2021-08-01
Security patch
1
Countries
1
CSC codes
7
Bootloader binary

Bootloader binary 7. Flashing firmware with a lower binary is usually blocked by Samsung anti-rollback.

All regional downloads

Pick your region (CSC) to download the matching firmware package.

Paste your current build number from Settings > About phone (About tablet) > Software information, or the output of *#1234#.
    MODEM/CP Version: G8870ZCU7CUI1
    ModelRegionCSC VersionBuild DateRelease dateSizeFile nameDownload
    SM-G8870
    CHC China
    		G8870CFE7CUI1 2021-09-30 2021-10-01 4.91 GiB
    SM-G8870_12_20210923144110_5aw5t0ppe6_fac.zip
    SM-G8870
    CHC China
    		G8870CHC7CUI1 2021-09-30 2021-10-01 4.875 GiB
    SM-G8870_3_20210923161305_nozvpbtd55_fac.zip

    No matching downloads

    What's new in G8870ZCU7CUI1

    • Overall stability of your device has been improved.
    • The latest Android security patch has been applied.
    - Device security has been further enhanced.

    How to flash G8870ZCU7CUI1

    • G8870ZCU7CUI1 has bootloader binary 7. Your device must run binary 7 or lower: it is the 5th character from the end of your current build number.
    • CSC: Use CSC for a clean install, to change the region (CSC code), to downgrade or to repair a device that does not boot.
    • HOME_CSC: Use HOME_CSC to update the same model and region while keeping your data. Back up anyway: a failed update can still require a reset.
    • The Download Mode key combo depends on the model: see all combos.
    Full flashing guide
    Beware: Manually flashing firmwares may brick your device. Use it at your own risk and follow our tutorial steps.

    Frequently Asked Questions

    G8870ZCU7CUI1 is Android 10 firmware for Samsung Galaxy A8s, released for China (CHC). It includes the 2021-08-01 security patch. Samsung built it on 2021-09-30.

    No. A newer build for SM-G8870 is available: G8870ZHU7CZB1. Install it instead of G8870ZCU7CUI1 unless you need this exact version. The previous build was G8870ZHU7CUI1.

    Download the package for your region (CSC) and unzip it. In Odin, load each file into the slot with the same name: BL, AP, CP (if the package has one) and CSC, or HOME_CSC to keep your data. Odin checks the built-in checksum of every .tar.md5 file before flashing. The Samsung Galaxy A8s must be on bootloader binary 7 or lower.

    This build uses bootloader binary 7. It can be flashed on a Samsung Galaxy A8s running binary 7 or lower; if the device already has a higher binary, Odin stops with "SW REV CHECK FAIL". 7 other builds of this model use the same binary, so you can switch between them in both directions.

    Other builds and changelog for Samsung Galaxy A8s

    • Stability and reliability
    Device behavior has been improved.

    These changes may vary depending on the model, country, or network operator of the customer environment.

    - The latest Android security patch has been applied.
    ㆍDevice security has been further enhanced.

    • Overall stability of your device has been improved.
    • The latest Android security patch has been applied.
    - Device security has been further enhanced.

    • Overall stability of your device has been improved.
    • The latest Android security patch has been applied.
    - Device security has been further enhanced.

    The exact changes may differ depending on your device model, region, and service provider.

    • Overall stability of your device has been improved.
    • The latest Android security patch has been applied.
    - Device security has been further enhanced.

    Show 15 older builds

    The exact changes may differ depending on your device model, region, and service provider.

    • Overall stability of your device has been improved.
    • The latest Android security patch has been applied.
    - Device security has been further enhanced.

    • Overall stability of your device has been improved.
    • The latest Android security patch has been applied.
    - Device security has been further enhanced.

    • Overall stability of your device has been improved.
    • The latest Android security patch has been applied.
    - Device security has been further enhanced.

    • The security of your device has been improved.
    • Optimizing telephone network
    • Add Baidu Cloud APP
    • Add Tencent Cloud APP

    • The security of your device has been improved.
    • Optimizing telephone network

    • Other bug fixes
    - fix the device restart issue

    The exact changes may differ depending on your device model, country/Region, and service provider.

    • Other bug fixes
    - fix the device restart issue.

    • Other bug fixes
    - The stability of telephone funtion has been improved.
    • The latest Android security patch has been applied.
    - Device security has been further enhanced.

    The exact changes may differ depending on your device model, country/Region, and service provider.

    • Other bug fixes
    - The stability of telephone function has been improved.
    • The latest Android security patch has been applied.
    - Device security has been further enhanced.

    No changelog details available.
    No changelog details available.

    • Other bug fixes
    - The stability of telephone network has been improved.
    - The stability of Camera has been improved.
    • The latest Android security patch has been applied.
    - Device security has been further enhanced.

    • Other bug fixes
    - The stability of receive call block funtion has been improved.
    - The stability of Device has been improved.
    • The latest Android security patch has been applied.
    - Device security has been further enhanced.

    The exact changes may differ depending on your device model, country/Region, and service provider.

    • Other bug fixes
    - The stability of receive call block funtion has been improved.
    - The stability of Device has been improved.
    • The latest Android security patch has been applied.
    - Device security has been further enhanced.

    No changelog details available.
    Model firmware by region