SM-A366U1 11 countries Android 16

Samsung Galaxy A36 5G A366U1UES8CZE3 Firmware

Samsung Galaxy A36 5G A366U1UES8CZE3 is an Android 16 firmware for 11 countries, 21 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 A366U1UEU7CZE2: bootloader binary raised from 7 to 8, so after installing it there is no way back to older builds; security patch 2026-05-05 instead of 2026-04-05. A newer build for SM-A366U1 is available: A366U1UEUADZIF.

OS updates guaranteed until: Android 21Security updates until: Mar 23, 2031
8.9/10 (93)11,769 times
Android 16
OS Version
2026-05-29
First release
other regions until 2026-06-01
2026-05-05
Security patch
11
Countries
21
CSC codes
8
Bootloader binary

Bootloader binary 8. Flashing firmware with a lower binary is usually blocked by Samsung anti-rollback.

Newer builds of Samsung Galaxy A36 5G use bootloader binary A (10) (latest: A366U1UEUADZIF). 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#.
    Your CSC is in Settings → About phone (About tablet) → Software information, or dial *#1234#. The CSC sets your region's features and network bands. Download the firmware for your country.
    2
    MODEM/CP Version: A366U1UES8CZE3
    ModelRegionCSC VersionBuild DateRelease dateSizeFile nameDownload
    SM-A366U1
    ACG, AIO, ATT, CCT, LRA, TMB, TMK, USC, VZW, XAA, XAR United States
    ATC, CHA, DSA, DSG, DSH, FKR, TFV, XAG
    		A366U1OYM8CZE3 2026-05-29 2026-06-09 8.134 GiB
    SM-A366U1_3_20260529164230_q3zvsfjx9a_fac.zip
    SM-A366U1
    PCT Puerto Rico
    LLA
    		A366U1OWA8CZE3 2026-06-01 2026-06-17 8.246 GiB
    SM-A366U1_3_20260601224230_0difr1y8ck_fac.zip

    No matching downloads

    Device specifications

    • Launched withAndroid 15
    • Display diagonal17 cm (6.7")
    • Display resolution1080 x 2340 pixels
    • RAM6 GB
    • Rear camera resolution50 MP
    • Rear camera typeTriple camera
    • Battery capacity5000 mAh
    • Weight195 g

    Specifications of SM-A366B, a regional variant of the same device. Chipset and SIM lines are left out: they can differ by region.

    What's new in A366U1UES8CZE3

    • Security
    The device is protected with improved security.

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

    How to flash A366U1UES8CZE3

    • A366U1UES8CZE3 has bootloader binary 8. Your device must run binary 8 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

    A366U1UES8CZE3 is Android 16 firmware for Samsung Galaxy A36 5G, released for 11 countries, 21 CSC codes. It includes the 2026-05-05 security patch. Samsung built it on 2026-05-29.

    No. A newer build for SM-A366U1 is available: A366U1UEUADZIF. Install it instead of A366U1UES8CZE3 unless you need this exact version. The previous build was A366U1UEU7CZE2.

    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 A36 5G must be on bootloader binary 8 or lower.

    This build uses bootloader binary 8. It can be flashed on a Samsung Galaxy A36 5G running binary 8 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 A36 5G

    No changelog details available.

    • 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.

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

    • 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.

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

    Show 7 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.

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    • 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.

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

    • 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.

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

    • 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