Galaxy Z Flip4 SM-F721B updates & firmware

This page tracks every software update Samsung's update servers list for the Samsung Galaxy Z Flip4 (SM-F721B). The latest stable build is F721BXXSCIZH4 (Android 16, security update), first released on Sep 6, 2026. Samsung has published 85 stable builds for this model since Aug 10, 2022: 61 security and 24 feature updates, from Android 12 to Android 16. The current bootloader (binary) version is 12. A device on bit 12 only accepts firmware with bit 12 or higher – see downgrading and the bootloader bit.

Latest build

F721BXXSCIZH4

Released

Sep 6, 2026

Android

Android 16

Bootloader bit

12

Regions

84

Stable builds

85

Update policy

Samsung promised 4 major Android upgrades and 5 years of security updates for the Galaxy Z Flip4, counted from its launch in August 2022 with Android 12. That makes Android 16 (One UI 8) the last major version and security updates continue until about August 2027. It is already on Android 16 (One UI 8), its last promised major version – from here on it gets security updates only.

OS upgrades promised

4

Security updates

5 years

Last major version

Android 16 (One UI 8)

Security support until

August 2027

Current version

Android 16 (One UI 8)

Status

Supported

Source: reported by sammobile.com. Samsung counts from the global launch and does not publish exact end dates; the dates above are launch month plus the promised years.

Compare all models: Samsung update policy by model.

Latest firmware by region (CSC)

Samsung builds firmware per region code (CSC). Pick the code that matches your device – it is shown under Settings › About phone › Software information › Service provider software version. Follow a code for its complete history.

Firmware history (85 builds)

Every stable build (PDA version) Samsung has published for the SM-F721B, newest first. “Released” is the earliest date the build appeared on Samsung's servers in any region (how dates work). “pulled” means Samsung no longer serves the file for that build, usually because newer builds replaced it (details).

Beta and test builds

Samsung's servers also list 2 beta build(s) for this model. They are not offered to regular users and are often removed after the next stable release.

How to download SM-F721B firmware

We do not host firmware. Download it directly from Samsung's servers with a free open-source tool, for example samloader:

samloader download -m SM-F721B -r EUX

Replace EUX with your region code. Step-by-step instructions, including a graphical alternative: How to download Samsung firmware.

Changelog and security patch level

Samsung publishes the release notes for each update, including the security patch level, on its own site. They are listed per region – for example SM-F721B / EUX release notes on doc.samsungmobile.com. Each region page here links to the notes for that code. We don't show the patch level ourselves because Samsung's update servers don't report it (why).