: If you are on BIT 3, you can flash any official firmware that is also BIT 3 or higher. If a newer update moves the phone to BIT 4, you will never be able to go back to a BIT 3 version of Android.
: Android 10, codenamed "Q" by Google, was the original operating system this phone shipped with in 2020.
: Unlike its 4G sibling (which used an Exynos 9611), the SM-A516U is powered by the Exynos 980 chipset, which integrates a 5G modem directly into the processor. The Software: Android 10 (Q) Samsung A51 5G SM-A516U Q (Android 10) (BIT 3) ...
: In Samsung's security architecture, you can update to a higher binary number, but you cannot downgrade to a lower one.
The term (also known as Binary 3 or SW Rev. 3 ) refers to the version of the phone's Bootloader . : If you are on BIT 3, you
: When it launched in 2020, it was one of the first affordable phones to bring 5G connectivity to the masses.
: You can find this number in your "Baseband version" (found in Settings > About Phone > Software Information). It is typically the 5th character from the right in the version string (e.g., A516USQU 3 BTJ4). Summary Table Model Samsung Galaxy A51 5G (SM-A516U) Original OS Android 10 (Q) Latest OS Android 13 (One UI 5.1) Bootloader BIT 3 (No downgrading to BIT 1 or 2) Support Status Support ended June 2024 Galaxy A51 5G (SM-A516U) - Notify Update : Unlike its 4G sibling (which used an
: As of June 2024, Samsung has officially ended software support for the A51 5G, meaning it will no longer receive monthly security patches or major OS upgrades. The "BIT 3" (Binary 3) Significance