Galaxy S21 FE 5G SM-G990U1 updates & firmware

This page tracks every software update Samsung's update servers list for the Samsung Galaxy S21 FE 5G (SM-G990U1). The latest stable build is G990U1UESPIZI2 (Android 16, security update), first released on Oct 22, 2026. Samsung has published 62 stable builds for this model since Aug 22, 2021: 42 security and 20 feature updates, from Android 11 to Android 16. The current bootloader (binary) version is 25. A device on bit 25 only accepts firmware with bit 25 or higher – see downgrading and the bootloader bit.

Rollout: build G990U1UESPIZI2 (Android 16 (One UI 8)) is live in all 14 regions, first released on Oct 22, 2026 in ACG (USA (C Spire)).

Latest build
G990U1UESPIZI2
Released
Oct 22, 2026
Android
Android 16
Bootloader bit
25
Regions
14
Stable builds
62

Update policy

Samsung has not published an update commitment for the Galaxy S21 FE 5G. According to our data it is on Android 16 (One UI 8), last build released Oct 22, 2026.

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.

CSCRegionLatest buildAndroidReleasedBuilds
ACGUSA (C Spire)G990U1UESPIZI2Android 16Oct 22, 202656
AIOUSA (Cricket)G990U1UESPIZI2Android 16Oct 22, 202662
ATTUSA (AT&T)G990U1UESPIZI2Android 16Oct 22, 202662
CCTUSA (Comcast)G990U1UESPIZI2Android 16Oct 22, 202662
DSAUSAG990U1UESPIZI2Android 16Oct 22, 202660
DSHUSAG990U1UESPIZI2Android 16Oct 22, 202661
LRAUSA (Bluegrass)G990U1UESPIZI2Android 16Oct 22, 202657
TFNUSA (TracFone)G990U1UESPIZI2Android 16Oct 22, 202661
TMBUSA (T-Mobile)G990U1UESPIZI2Android 16Oct 22, 202661
TMKUSA (MetroPCS)G990U1UESPIZI2Android 16Oct 22, 202661
USCUSA (US Cellular)G990U1UESPIZI2Android 16Oct 22, 202662
VZWUSA (Verizon)G990U1UESPIZI2Android 16Oct 22, 202662
XAAUSA (unlocked)G990U1UESPIZI2Android 16Oct 22, 202660
XARUSA (Cellular South)G990U1UESPIZI2Android 16Oct 22, 202662

Firmware history (62 builds)

Every stable build (PDA version) Samsung has published for the SM-G990U1, 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).

Build (PDA)ReleasedAndroidTypeBitRegionsFile
G990U1UESPIZI2Oct 22, 2026Android 16Security2514on server
G990U1UESOIZH2Sep 23, 2026Android 16Security2414on server
G990U1UESNIZF3Jul 8, 2026Android 16Security2314on server
G990U1UESNIZE2Jun 3, 2026Android 16Security2314on server
G990U1UESMIZB2Mar 15, 2026Android 16Security2214on server
G990U1UESLIZA1Jan 29, 2026Android 16Security2114on server
G990U1UESKIYL1Dec 18, 2025Android 16Security2014on server
G990U1UESKIYK2Nov 26, 2025Android 16Security2014on server
G990U1UEUJIYJ4Nov 11, 2025Android 16Feature1914on server
G990U1UESJHYI6Sep 30, 2025Android 15Security1914on server
G990U1UESIHYH1Aug 25, 2025Android 15Security1814on server
G990U1UESIHYG1Jul 24, 2025Android 15Security1814on server
G990U1UESHHYF4Jun 25, 2025Android 15Security1714on server
G990U1UESGHYE5May 29, 2025Android 15Security1614on server
G990U1UEUFHYDAMay 12, 2025Android 15Feature1514on server
G990U1UESFGYD2Apr 16, 2025Android 14Security1514on server
G990U1UESFGYC1Mar 25, 2025Android 14Security1514on server
G990U1UESEGYA3Feb 26, 2025Android 14Security1414on server
G990U1UESEGXL5Jan 12, 2025Android 14Security1414on server
G990U1UESEGXK2Dec 18, 2024Android 14Security1414on server
G990U1UESEGXJ6Nov 18, 2024Android 14Security1414on server
G990U1UESDGXJ4Oct 21, 2024Android 14Security1314on server
G990U1UESCGXH2Sep 15, 2024Android 14Security1214on server
G990U1UEUCGXG7Aug 23, 2024Android 14Feature1214on server
G990U1UESCGXF3Jul 16, 2024Android 14Security1214on server
G990U1UESBGXF1Jun 16, 2024Android 14Security1114on server
G990U1UESBGXE1May 23, 2024Android 14Security1114on server
G990U1UEUAGXDEMay 13, 2024Android 14Feature1014on server
G990U1UESAFXD1Apr 15, 2024Android 14Security1014on server
G990U1UESAFXC1Mar 19, 2024Android 14Security1014on server
G990U1UESAFXAAFeb 8, 2024Android 14Security1014on server
G990U1UES9FXA1Jan 23, 2024Android 14Security914on server
G990U1UEU9FWL2Jan 10, 2024Android 14Feature914on server
G990U1UES9EWK1Nov 21, 2023Android 13Security912on server
G990U1UES9EWJ1Oct 17, 2023Android 13Security912on server
G990U1UEU9EWI3Oct 10, 2023Android 13Feature912on server
G990U1UES9EWH2Sep 25, 2023Android 13Security914on server
G990U1UES8EWG2Aug 17, 2023Android 13Security814on server
G990U1UES8EWF3Jul 23, 2023Android 13Security814on server
G990U1UEU7EWF2Jul 4, 2023Android 13Feature714on server
G990U1UES7EWE3Jun 12, 2023Android 13Security714on server
G990U1UEU6EWDAMay 21, 2023Android 13Feature614on server
G990U1UES5EWC2Apr 11, 2023Android 13Security514on server
G990U1UEU5EWB7Apr 3, 2023Android 13Feature514on server
G990U1UEU4EWB5Mar 6, 2023Android 13Feature414on server
G990U1UES4DWB1Feb 20, 2023Android 13Security411on server
G990U1UES4DWA1Jan 27, 2023Android 13Security411on server
G990U1UEU4DVLCJan 22, 2023Android 13Feature414on server
G990U1UES4CVK1Dec 18, 2022Android 12Security414on server
G990U1UEU4CVJ2Oct 25, 2022Android 12Feature414on server
G990U1UEU4CVI5Oct 4, 2022Android 12Feature413on server
G990U1UEU3CVG2Aug 15, 2022Android 12Feature314on server
G990U1UES3CVF3Jul 13, 2022Android 12Security310on server
G990U1UEU3CVF2Jun 26, 2022Android 12Feature314on server
G990U1UES3CVD3May 11, 2022Android 12Security314on server
G990U1UES3CVD2Apr 28, 2022Android 12Security314on server
G990U1UEU2CVC3Mar 27, 2022Android 12Feature214on server
G990U1UES2BVA3Feb 8, 2022Android 12Security214on server
G990U1UEU2BUL8Jan 15, 2022Android 12Feature214on server
G990U1UEU2AUI1Dec 31, 2021Android 11Feature213on server
G990U1UEU2BUK5Dec 28, 2021Android 12Feature214on server
G990U1UEU1AUG7Aug 22, 2021Android 11Feature113on server

How to download SM-G990U1 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-G990U1 -r XAA

Replace XAA 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-G990U1 / XAA 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).