S731U1UEUACZJC – Galaxy S25 FE firmware
Build S731U1UEUACZJC is a feature update for the Galaxy S25 FE (SM-S731U1)
on Android 17 (One UI 9). It first appeared on Samsung's servers on Nov 7, 2026 (method) and has reached
14 regions so far. It raises the bootloader bit from 9 to 10: once installed, the device no longer accepts firmware with bit 9 or lower, so a downgrade to S731U1UES9CZJ2 is blocked. Samsung still serves this file.
- Model
- SM-S731U1
- Android
- Android 17
- Type
- Feature
- Bootloader bit
- 10
- First released
- Nov 7, 2026
- Regions
- 14
Rollout timeline by region
The date each region code (CSC) first received S731U1UEUACZJC, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
ACG | USA (C Spire) | Nov 7, 2026 | day 0 | S731U1UEUACZJC/S731U1OYMACZJC/S731U1UEUACZJC |
AIO | USA (Cricket) | Nov 7, 2026 | day 0 | S731U1UEUACZJC/S731U1OYMACZJC/S731U1UEUACZJC |
ATT | USA (AT&T) | Nov 7, 2026 | day 0 | S731U1UEUACZJC/S731U1OYMACZJC/S731U1UEUACZJC |
CCT | USA (Comcast) | Nov 7, 2026 | day 0 | S731U1UEUACZJC/S731U1OYMACZJC/S731U1UEUACZJC |
DSA | USA | Nov 7, 2026 | day 0 | S731U1UEUACZJC/S731U1OYMACZJC/S731U1UEUACZJC |
DSH | USA | Nov 7, 2026 | day 0 | S731U1UEUACZJC/S731U1OYMACZJC/S731U1UEUACZJC |
TMB | USA (T-Mobile) | Nov 7, 2026 | day 0 | S731U1UEUACZJC/S731U1OYMACZJC/S731U1UEUACZJC |
TMK | USA (MetroPCS) | Nov 7, 2026 | day 0 | S731U1UEUACZJC/S731U1OYMACZJC/S731U1UEUACZJC |
USC | USA (US Cellular) | Nov 7, 2026 | day 0 | S731U1UEUACZJC/S731U1OYMACZJC/S731U1UEUACZJC |
XAA | USA (unlocked) | Nov 7, 2026 | day 0 | S731U1UEUACZJC/S731U1OYMACZJC/S731U1UEUACZJC |
LRA | USA (Bluegrass) | Nov 7, 2026 | day 0 | S731U1UEUACZJC/S731U1OYMACZJC/S731U1UEUACZJC |
TFN | USA (TracFone) | Nov 7, 2026 | day 0 | S731U1UEUACZJC/S731U1OYMACZJC/S731U1UEUACZJC |
VZW | USA (Verizon) | Nov 7, 2026 | day 0 | S731U1UEUACZJC/S731U1OYMACZJC/S731U1UEUACZJC |
XAR | USA (Cellular South) | Nov 7, 2026 | day 0 | S731U1UEUACZJC/S731U1OYMACZJC/S731U1UEUACZJC |
Download and release notes
samloader download -m SM-S731U1 -r XAA -v S731U1UEUACZJC/S731U1OYMACZJC/S731U1UEUACZJCSamsung's release notes and security patch level for this update: SM-S731U1 / XAA on doc.samsungmobile.com. What each part of the build number means: decode S731U1UEUACZJC.