S721USQSEEZJ1 – Galaxy S24 FE firmware
Build S721USQSEEZJ1 is a security update for the Galaxy S24 FE (SM-S721U)
on Android 17 (One UI 9). It first appeared on Samsung's servers on Oct 27, 2026 (method) and has reached
5 regions so far. It keeps bootloader bit 14, so downgrading to the previous build S721USQUEEZIF is still possible. Samsung still serves this file.
- Model
- SM-S721U
- Android
- Android 17
- Type
- Security
- Bootloader bit
- 14
- First released
- Oct 27, 2026
- Regions
- 5
Rollout timeline by region
The date each region code (CSC) first received S721USQSEEZJ1, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
AIO | USA (Cricket) | Oct 27, 2026 | day 0 | S721USQSEEZJ1/S721UOYNEEZJ1/S721USQSEEZJ1 |
ATT | USA (AT&T) | Oct 27, 2026 | day 0 | S721USQSEEZJ1/S721UOYNEEZJ1/S721USQSEEZJ1 |
VZW | USA (Verizon) | Oct 29, 2026 | +2 days | S721USQSEEZJ1/S721UOYNEEZJ1/S721USQSEEZJ1 |
CCT | USA (Comcast) | Nov 2, 2026 | +6 days | S721USQSEEZJ1/S721UOYNEEZJ1/S721USQSEEZJ1 |
XAA | USA (unlocked) | Nov 2, 2026 | +6 days | S721USQSEEZJ1/S721UOYNEEZJ1/S721USQSEEZJ1 |
Download and release notes
samloader download -m SM-S721U -r XAA -v S721USQSEEZJ1/S721UOYNEEZJ1/S721USQSEEZJ1Samsung's release notes and security patch level for this update: SM-S721U / XAA on doc.samsungmobile.com. What each part of the build number means: decode S721USQSEEZJ1.