S938WVLUDDZJB – Galaxy S25 Ultra firmware

Build S938WVLUDDZJB is a feature update for the Galaxy S25 Ultra (SM-S938W) on Android 17 (One UI 9). It first appeared on Samsung's servers on Nov 11, 2026 (method) and has reached 11 regions so far. It raises the bootloader bit from 12 to 13: once installed, the device no longer accepts firmware with bit 12 or lower, so a downgrade to S938WVLUCDZIF is blocked. Samsung still serves this file.

Model
SM-S938W
Android
Android 17
Type
Feature
Bootloader bit
13
First released
Nov 11, 2026
Regions
11

Rollout timeline by region

The date each region code (CSC) first received S938WVLUDDZJB, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
BMCCanada (Bell)Nov 11, 2026day 0S938WVLUDDZJB/S938WOYVDDZJB/S938WVLUDDZJB
BWACanadaNov 11, 2026day 0S938WVLUDDZJB/S938WOYVDDZJB/S938WVLUDDZJB
ESKCanada (Eastlink)Nov 11, 2026day 0S938WVLUDDZJB/S938WOYVDDZJB/S938WVLUDDZJB
FMCCanada (Fido)Nov 11, 2026day 0S938WVLUDDZJB/S938WOYVDDZJB/S938WVLUDDZJB
GLWCanada (Freedom)Nov 11, 2026day 0S938WVLUDDZJB/S938WOYVDDZJB/S938WVLUDDZJB
KDOCanada (Koodo)Nov 11, 2026day 0S938WVLUDDZJB/S938WOYVDDZJB/S938WVLUDDZJB
RWCCanada (Rogers)Nov 11, 2026day 0S938WVLUDDZJB/S938WOYVDDZJB/S938WVLUDDZJB
TLSCanada (Telus)Nov 11, 2026day 0S938WVLUDDZJB/S938WOYVDDZJB/S938WVLUDDZJB
VMCCanada (Virgin)Nov 11, 2026day 0S938WVLUDDZJB/S938WOYVDDZJB/S938WVLUDDZJB
VTRCanada (Videotron)Nov 11, 2026day 0S938WVLUDDZJB/S938WOYVDDZJB/S938WVLUDDZJB
XACCanadaNov 11, 2026day 0S938WVLUDDZJB/S938WOYVDDZJB/S938WVLUDDZJB

Download and release notes

samloader download -m SM-S938W -r BMC -v S938WVLUDDZJB/S938WOYVDDZJB/S938WVLUDDZJB

Samsung's release notes and security patch level for this update: SM-S938W / BMC on doc.samsungmobile.com. What each part of the build number means: decode S938WVLUDDZJB.