A346BXXSEEZB6 – Galaxy A34 5G firmware

Build A346BXXSEEZB6 is a security update for the Galaxy A34 5G (SM-A346B) on Android 16 (One UI 8). It first appeared on Samsung's servers on Mar 10, 2026 (method) and has reached 18 regions so far. It raises the bootloader bit from 13 to 14: once installed, the device no longer accepts firmware with bit 13 or lower, so a downgrade to A346BXXSDEYL2 is blocked. Samsung still serves this file.

Model
SM-A346B
Android
Android 16
Type
Security
Bootloader bit
14
First released
Mar 10, 2026
Regions
18

Rollout timeline by region

The date each region code (CSC) first received A346BXXSEEZB6, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
BOGFrance (Bouygues)Mar 10, 2026day 0A346BXXSEEZB6/A346BOXMEEZB6/A346BXXSEEZB6
MOBAustria (A1)Mar 10, 2026day 0A346BXXSEEZB6/A346BOXMEEZB6/A346BXXSEEZB6
O2CCzech Republic (O2)Mar 10, 2026day 0A346BXXSEEZB6/A346BOXMEEZB6/A346BXXSEEZB6
SFRFrance (SFR)Mar 10, 2026day 0A346BXXSEEZB6/A346BOXMEEZB6/A346BXXSEEZB6
VIPCroatia (A1)Mar 10, 2026day 0A346BXXSEEZB6/A346BOXMEEZB6/A346BXXSEEZB6
EUXEurope (Multi-CSC)Mar 10, 2026day 0A346BXXSEEZB6/A346BOXMEEZB6/A346BXXSEEZB6
PLSPoland (Plus)Mar 10, 2026day 0A346BXXSEEZB6/A346BOXMEEZB6/A346BXXSEEZB6
TIMItaly (TIM)Mar 10, 2026day 0A346BXXSEEZB6/A346BOXMEEZB6/A346BXXSEEZB6
MEOPortugal (MEO)Mar 10, 2026day 0A346BXXSEEZB6/A346BOXMEEZB6/A346BXXSEEZB6
MSRSerbiaMar 10, 2026day 0A346BXXSEEZB6/A346BOXMEEZB6/A346BXXSEEZB6
PRTPoland (Play)Mar 10, 2026day 0A346BXXSEEZB6/A346BOXMEEZB6/A346BXXSEEZB6
TOPSerbia/MontenegroMar 10, 2026day 0A346BXXSEEZB6/A346BOXMEEZB6/A346BXXSEEZB6
EUYEurope (Multi-CSC)Mar 10, 2026day 0A346BXXSEEZB6/A346BOXMEEZB6/A346BXXSEEZB6
MOTSlovenia (Telekom)Mar 10, 2026day 0A346BXXSEEZB6/A346BOXMEEZB6/A346BXXSEEZB6
SIMSlovenia (A1)Mar 10, 2026day 0A346BXXSEEZB6/A346BOXMEEZB6/A346BXXSEEZB6
SWCSwitzerlandMar 10, 2026day 0A346BXXSEEZB6/A346BOXMEEZB6/A346BXXSEEZB6
BTBUnited Kingdom (BT)Mar 10, 2026day 0A346BXXSEEZB6/A346BOXMEEZB6/A346BXXSEEZB6
EVRUnited Kingdom (EE)Mar 10, 2026day 0A346BXXSEEZB6/A346BOXMEEZB6/A346BXXSEEZB6

Download and release notes

samloader download -m SM-A346B -r EUX -v A346BXXSEEZB6/A346BOXMEEZB6/A346BXXSEEZB6

Samsung's release notes and security patch level for this update: SM-A346B / EUX on doc.samsungmobile.com. What each part of the build number means: decode A346BXXSEEZB6.