Samsung Galaxy A35 5G A356USQS9CZB7
SM-A356U 3 countries Android 16

Samsung Galaxy A35 5G A356USQS9CZB7 Firmware

Samsung Galaxy A35 5G A356USQS9CZB7 is an Android 16 firmware for DSA, DSG, DSH. 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 A356USQS9CZB6, Android and the bootloader binary are unchanged, so you can switch between the two in both directions. A newer build for SM-A356U is available: A356USQUCEZJ2.

OS updates guaranteed until: Android 18Security updates until: Mar 3, 2029
Download firmware
8.7/10 (145)2,238 times
Android 16
OS Version
2026-03-10
Build Date
2026-02-05
Security patch
3
Countries
3
CSC codes
9
Bootloader binary

Bootloader binary 9. Flashing firmware with a lower binary is usually blocked by Samsung anti-rollback.

Newer builds of Samsung Galaxy A35 5G use bootloader binary C (12) (latest: A356USQUCEZJ2). If your device already runs binary C (12), 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: A356USQS9CZB7
    ModelRegionCSC VersionBuild DateRelease dateSizeFile nameDownload
    SM-A356U
    DSA
    		A356UOYN9CZB7 2026-03-10 2026-03-12 7.612 GiB
    SM-A356U_3_20260218201340_8m3xpe7mqz_fac.zip
    		Download
    SM-A356U
    DSG
    		A356UOYN9CZB7 2026-03-10 2026-03-12 7.612 GiB
    SM-A356U_3_20260218204221_lw0hcx9uwp_fac.zip
    		Download
    SM-A356U
    DSH
    		A356UOYN9CZB7 2026-03-10 2026-03-12 7.612 GiB
    SM-A356U_3_20260218205851_qmppb2u1ek_fac.zip
    		Download

    No matching downloads

    How to flash A356USQS9CZB7

    • A356USQS9CZB7 has bootloader binary 9. Your device must run binary 9 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 A356USQS9CZB7

    • 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 A356USQS9CZB7 by region

    Samsung released this build in all regions (3) on the same day, March 12, 2026.

    Device specifications

    • Launched withAndroid 14
    • Display diagonal16.8 cm (6.6")
    • Display resolution1080 x 2340 pixels
    • RAM6 GB
    • Rear camera resolution50 MP
    • Rear camera typeTriple camera
    • Battery capacity5000 mAh
    • Weight209 g

    Specifications of SM-A356B, a regional variant of the same device. Chipset and SIM lines are left out: they can differ by region.

    Frequently Asked Questions

    A356USQS9CZB7 is Android 16 firmware for Samsung Galaxy A35 5G, released for DSA, DSG, DSH. It includes the 2026-02-05 security patch. Samsung built it on 2026-03-10.

    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-A356U is available: A356USQUCEZJ2. Install it instead of A356USQS9CZB7 unless you need this exact version. The previous build was A356USQS9CZB6.

    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 7.612 GiB; keep about twice that free on the computer to unzip it. The Samsung Galaxy A35 5G must be on bootloader binary 9 or lower.

    This build uses bootloader binary 9. It can be flashed on a Samsung Galaxy A35 5G running binary 9 or lower; if the device already has a higher binary, Odin stops with "SW REV CHECK FAIL". 1 other build of this model uses the same binary, so you can switch between them in both directions.

    Other builds and changelog for Samsung Galaxy A35 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 1 older build

    • Security
    The device is protected with improved security.

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

    Model firmware by region