S942U1UEU5BZJA – Galaxy S26 firmware
Build S942U1UEU5BZJA is a feature update for the Galaxy S26 (SM-S942U1)
on Android 17 (One UI 9). It first appeared on Samsung's servers on Oct 28, 2026 (method) and has reached
14 regions so far. It raises the bootloader bit from 4 to 5: once installed, the device no longer accepts firmware with bit 4 or lower, so a downgrade to S942U1UES4BZIG is blocked. Samsung still serves this file.
- Model
- SM-S942U1
- Android
- Android 17
- Type
- Feature
- Bootloader bit
- 5
- First released
- Oct 28, 2026
- Regions
- 14
Rollout timeline by region
The date each region code (CSC) first received S942U1UEU5BZJA, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
ACG | USA (C Spire) | Oct 28, 2026 | day 0 | S942U1UEU5BZJA/S942U1OYM5BZJA/S942U1UEU5BZJA |
AIO | USA (Cricket) | Oct 28, 2026 | day 0 | S942U1UEU5BZJA/S942U1OYM5BZJA/S942U1UEU5BZJA |
ATT | USA (AT&T) | Oct 28, 2026 | day 0 | S942U1UEU5BZJA/S942U1OYM5BZJA/S942U1UEU5BZJA |
CCT | USA (Comcast) | Oct 28, 2026 | day 0 | S942U1UEU5BZJA/S942U1OYM5BZJA/S942U1UEU5BZJA |
DSA | USA | Oct 28, 2026 | day 0 | S942U1UEU5BZJA/S942U1OYM5BZJA/S942U1UEU5BZJA |
DSH | USA | Oct 28, 2026 | day 0 | S942U1UEU5BZJA/S942U1OYM5BZJA/S942U1UEU5BZJA |
LRA | USA (Bluegrass) | Oct 28, 2026 | day 0 | S942U1UEU5BZJA/S942U1OYM5BZJA/S942U1UEU5BZJA |
TFN | USA (TracFone) | Oct 28, 2026 | day 0 | S942U1UEU5BZJA/S942U1OYM5BZJA/S942U1UEU5BZJA |
TMB | USA (T-Mobile) | Oct 28, 2026 | day 0 | S942U1UEU5BZJA/S942U1OYM5BZJA/S942U1UEU5BZJA |
TMK | USA (MetroPCS) | Oct 28, 2026 | day 0 | S942U1UEU5BZJA/S942U1OYM5BZJA/S942U1UEU5BZJA |
USC | USA (US Cellular) | Oct 28, 2026 | day 0 | S942U1UEU5BZJA/S942U1OYM5BZJA/S942U1UEU5BZJA |
VZW | USA (Verizon) | Oct 28, 2026 | day 0 | S942U1UEU5BZJA/S942U1OYM5BZJA/S942U1UEU5BZJA |
XAA | USA (unlocked) | Oct 28, 2026 | day 0 | S942U1UEU5BZJA/S942U1OYM5BZJA/S942U1UEU5BZJA |
XAR | USA (Cellular South) | Oct 28, 2026 | day 0 | S942U1UEU5BZJA/S942U1OYM5BZJA/S942U1UEU5BZJA |
Download and release notes
samloader download -m SM-S942U1 -r XAA -v S942U1UEU5BZJA/S942U1OYM5BZJA/S942U1UEU5BZJASamsung's release notes and security patch level for this update: SM-S942U1 / XAA on doc.samsungmobile.com. What each part of the build number means: decode S942U1UEU5BZJA.