S506DLUDSBDUL3 – Galaxy A50 firmware

Build S506DLUDSBDUL3 is a security update for the Galaxy A50 (SM-S506DL) on Android 11 (One UI 3). It first appeared on Samsung's servers on Dec 30, 2021 (method) and has reached 1 region so far. It raises the bootloader bit from 10 to 11: once installed, the device no longer accepts firmware with bit 10 or lower, so a downgrade to S506DLUDSADUI2 is blocked. Samsung still serves this file.

Model
SM-S506DL
Android
Android 11
Type
Security
Bootloader bit
11
First released
Dec 30, 2021
Regions
1

Rollout timeline by region

The date each region code (CSC) first received S506DLUDSBDUL3, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
TFNUSA (TracFone)Dec 30, 2021day 0S506DLUDSBDUL3/S506DLTFNBDUL3/S506DLUDSBDUL3

Download and release notes

samloader download -m SM-S506DL -r TFN -v S506DLUDSBDUL3/S506DLTFNBDUL3/S506DLUDSBDUL3

Samsung's release notes and security patch level for this update: SM-S506DL / TFN on doc.samsungmobile.com. What each part of the build number means: decode S506DLUDSBDUL3.