Samsung Galaxy A40 A405FNXXU3BTG3
SM-A405FN 1 country Android 10

Samsung Galaxy A40 A405FNXXU3BTG3 Firmware

Samsung Galaxy A40 A405FNXXU3BTG3 is an Android 10 firmware for United Kingdom (BTU, XEU). 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 A405FNXXU3BTG2, Android and the bootloader binary are unchanged, so you can switch between the two in both directions. A newer build for SM-A405FN is available: A405FNXXU4CWC3.

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Android 10
OS Version
2020-08-05
Build Date
2020-07-01
Security patch
1
Countries
2
CSC codes
3
Bootloader binary

Bootloader binary 3. Flashing firmware with a lower binary is usually blocked by Samsung anti-rollback.

Newer builds of Samsung Galaxy A40 use bootloader binary 4 (latest: A405FNXXU4CWC3). If your device already runs binary 4, 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: A405FNXXU3BTG1
    ModelRegionCSC VersionRelease dateSizeFile nameDownload
    SM-A405FN
    BTU, XEU United Kingdom
    		A405FNOXM3BTG1 2020-08-14 3.994 GiB
    SM-A405FN_1_20201202140934_1ib0gfqdap_fac.zip
    MD5:fea7375cb5786571fc70146a477d2afa
    SHA1:136b4b4f82de25b68de4e0e81ece0ee475239541

    No matching downloads

    Device specifications

    • Launched withAndroid 9.0
    • Display diagonal15 cm (5.9")
    • Display resolution1080 x 2340 pixels
    • Display typeSAMOLED
    • Processor frequency1.8 GHz
    • Processor familySamsung Exynos
    • RAM4 GB
    • Rear camera resolution16 MP
    • Rear camera typeDual camera
    • SIM cardsDual SIM
    • Battery capacity3100 mAh
    • Weight140 g

    What's new in A405FNXXU3BTG3

    • Overall stability of functions improved.
    • The stability of Wallpaper has been improved.

    How to flash A405FNXXU3BTG3

    • A405FNXXU3BTG3 has bootloader binary 3. Your device must run binary 3 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

    A405FNXXU3BTG3 is Android 10 firmware for Samsung Galaxy A40, released for United Kingdom (BTU, XEU). It includes the 2020-07-01 security patch. Samsung built it on 2020-08-05.

    No. A newer build for SM-A405FN is available: A405FNXXU4CWC3. Install it instead of A405FNXXU3BTG3 unless you need this exact version. The previous build was A405FNXXU3BTG2.

    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 3.994 GiB; keep about twice that free on the computer to unzip it. The Samsung Galaxy A40 must be on bootloader binary 3 or lower.

    This build uses bootloader binary 3. It can be flashed on a Samsung Galaxy A40 running binary 3 or lower; if the device already has a higher binary, Odin stops with "SW REV CHECK FAIL". 24 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 A40

    • Overall device performance has been improved.
    • The security of your device has been improved.

    • The security of your device has been improved.

    • Overall device performance has been improved.
    • The security of your device has been improved.

    • The security of your device has been improved.

    • Overall stability of your device has been improved.

    Show 15 older builds

    • Overall device performance has been improved.
    • The security of your device has been improved.

    • Overall device performance has been improved.
    • The security of your device has been improved.

    • Overall stability of your device has been improved.
    • The security of your device has been improved.

    • Overall stability of your device has been improved.
    • The security of your device has been improved.

    • Overall stability of your device has been improved.
    • The security of your device has been improved.

    • The security of your device has been improved.

    • The security of your device has been improved.

    • Overall device performance has been improved.
    • The security of your device has been improved.

    • Overall device performance has been improved.
    • The security of your device has been improved.

    • Improved stability. - Wi-Fi tethering
    • Overall device performance has been improved.
    • The security of your device has been improved.

    • Overall stability of functions improved.

    One UI 3 Upgrade (Android 11)

    One UI 3 is designed to help you focus on what matters. Our visual redesign has improved the places you visit the most, like the Home screen and quick panel, to reduce distractions, highlight important information, and make your experience more consistent. Performance improvements will help apps run quicker while using less battery power. And One UI 3 puts control in your hands with new privacy controls, one-time permissions, and enhanced Digital Wellbeing.

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    • The SIM card detection stability has been improved.
    • The stability of Camera has been improved.
    • The security of your device has been improved.

    • The security of your device has been improved.

    · The security of your device has been improved.

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