Samsung Galaxy A16 5G A166EXXS7CZB6
SM-A166E 4 countries Android 16

Samsung Galaxy A16 5G A166EXXS7CZB6 Firmware

Samsung Galaxy A16 5G A166EXXS7CZB6 is an Android 16 firmware for 4 countries, 4 CSC codes. 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 A166EXXS6CZA8: bootloader binary raised from 6 to 7, so after installing it there is no way back to older builds; security patch 2026-02-05 instead of 2026-01-01. A newer build for SM-A166E is available: A166EXXUAEZJ5.

OS updates guaranteed until: Android 22Security updates until: Oct 27, 2032
Download firmware
9.3/10 (146)3,601 times
Android 16
OS Version
2026-03-09
Build Date
2026-02-05
Security patch
4
Countries
4
CSC codes
7
Bootloader binary

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

Newer builds of Samsung Galaxy A16 5G use bootloader binary A (10) (latest: A166EXXUAEZJ5). If your device already runs binary A (10), this build cannot be flashed.

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: A166EXXS7CZB4
    ModelRegionCSC VersionRelease dateSizeFile nameDownload
    SM-A166E
    KSA Saudi Arabia
    MID Iraq
    TUN Tunisia
    XSG United Arab Emirates
    		A166EOJM7CZB6 2026-03-09 6.061 GiB
    SM-A166E_3_20260215033331_rz4k5ervhv_fac.zip

    No matching downloads

    How to flash A166EXXS7CZB6

    • A166EXXS7CZB6 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.

    What's new in A166EXXS7CZB6

    • Security
    The device is protected with improved security.

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

    Security patch: February 2026

    SMR Feb-2026 fixes 32 vulnerabilities, 0 of them critical. Android Security Bulletin: 25, Samsung-specific issues (SVE): 7.

    Most severe Samsung fixes:

    • high Improper access control in Emergency Sharing prior to SMR Feb-2026 Release 1 allows local attackers to interrupt its functioning. (CVE-2026-20977)
    • high Improper export of android application components in Samsung Dialer prior to SMR Feb-2026 Release 1 allows local attackers to launch arbitrary activity with Samsung Dialer privilege. (CVE-2026-20983)
    • high Improper authorization in KnoxGuardManager prior to SMR Feb-2026 Release 1 allows local attackers to bypass the persistence configuration of the application. (CVE-2026-20978)

    All fixes and Galaxy models with this patch

    Rollout of A166EXXS7CZB6 by region

    Samsung released this build in all regions (4) on the same day, March 9, 2026.

    Device specifications

    • Display diagonal17 cm (6.7")
    • Display resolution1080 x 2340 pixels
    • RAM8 GB
    • Rear camera resolution50 MP
    • Rear camera typeTriple camera
    • Battery capacity5000 mAh
    • Weight200 g

    Specifications of SM-A166B, a regional variant of the same device. Chipset and SIM lines are left out: they can differ by region.

    Frequently Asked Questions

    A166EXXS7CZB6 is Android 16 firmware for Samsung Galaxy A16 5G, released for 4 countries, 4 CSC codes. It includes the 2026-02-05 security patch. Samsung built it on 2026-03-09.

    SMR Feb-2026 fixes 32 vulnerabilities, 0 of them critical. Android Security Bulletin: 25, Samsung-specific issues (SVE): 7.

    No. A newer build for SM-A166E is available: A166EXXUAEZJ5. Install it instead of A166EXXS7CZB6 unless you need this exact version. The previous build was A166EXXS6CZA8.

    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 download is 6.061 GiB; keep about twice that free on the computer to unzip it. The Samsung Galaxy A16 5G must be on bootloader binary 7 or lower.

    This build uses bootloader binary 7. It can be flashed on a Samsung Galaxy A16 5G running binary 7 or lower; if the device already has a higher binary, Odin stops with "SW REV CHECK FAIL". No other build of this model uses binary 7.

    Other builds and changelog for Samsung Galaxy A16 5G

    One UI 9
    Productivity and multitasking

    More customizable quick panel
    You can now rearrange and customize the controls in your quick panel even more than before. You can change the size of the brightness and volume sliders as well as the media player. You can also separate the sound mode button from the volume slider.

    Privacy, security, and device protection

    Warranty and care
    The new Warranty and care menu in settings lets you check your warranty information and access diagnostic checks a...

    • Security
    The device is protected with improved security.

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

    One UI 8.5
    Visual design

    Fresh new look
    One UI seamlessly integrates into your daily routine by combining immersive visuals with meaningful personalization for a more refined and sophisticated design. Transparent blur effects add depth and make content easier to navigate, while floating elements react organically to your workflow for a more focused experience. Through familiar and intuitive data visualization, One UI delivers a design that feels both personal and relatable, helping you focus...

    • Security
    The device is protected with improved security.

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

    One UI 8.0 (Android 16)
    Productivity

    Check stock prices without unlocking
    Stocks you follow on Google Finance with big price changes will appear on your Now bar at the end of the trading day.

    Easier file sharing with Quick Share
    It's never been easier to send and receive files. Tap the Quick Share button in quick settings to get started. You can receive files while the Quick Share screen is open and send files to others directly from Quick Share.

    Sticky notes
    Add quick annotations on top o...

    Show 4 older builds

    • Security
    The device is protected with improved security.

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

    • Security
    The device is protected with improved security.

    • Stability and reliability
    Device behavior has been improved.
    • Security
    The device is protected with improved security.

    Model firmware by region