S938WVLSBCZF5 – Galaxy S25 Ultra firmware

Build S938WVLSBCZF5 is a security update for the Galaxy S25 Ultra (SM-S938W) on Android 16 (One UI 8). It first appeared on Samsung's servers on Jul 19, 2026 (method) and has reached 11 regions 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 S938WVLUACZF1 is blocked. Samsung still serves this file.

Model
SM-S938W
Android
Android 16
Type
Security
Bootloader bit
11
First released
Jul 19, 2026
Regions
11

Rollout timeline by region

The date each region code (CSC) first received S938WVLSBCZF5, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
TLSCanada (Telus)Jul 19, 2026day 0S938WVLSBCZF5/S938WOYVBCZF5/S938WVLSBCZF5
VMCCanada (Virgin)Jul 19, 2026day 0S938WVLSBCZF5/S938WOYVBCZF5/S938WVLSBCZF5
VTRCanada (Videotron)Jul 19, 2026day 0S938WVLSBCZF5/S938WOYVBCZF5/S938WVLSBCZF5
XACCanadaJul 19, 2026day 0S938WVLSBCZF5/S938WOYVBCZF5/S938WVLSBCZF5
BMCCanada (Bell)Jul 19, 2026day 0S938WVLSBCZF5/S938WOYVBCZF5/S938WVLSBCZF5
BWACanadaJul 19, 2026day 0S938WVLSBCZF5/S938WOYVBCZF5/S938WVLSBCZF5
ESKCanada (Eastlink)Jul 19, 2026day 0S938WVLSBCZF5/S938WOYVBCZF5/S938WVLSBCZF5
FMCCanada (Fido)Jul 19, 2026day 0S938WVLSBCZF5/S938WOYVBCZF5/S938WVLSBCZF5
GLWCanada (Freedom)Jul 19, 2026day 0S938WVLSBCZF5/S938WOYVBCZF5/S938WVLSBCZF5
KDOCanada (Koodo)Jul 19, 2026day 0S938WVLSBCZF5/S938WOYVBCZF5/S938WVLSBCZF5
RWCCanada (Rogers)Jul 19, 2026day 0S938WVLSBCZF5/S938WOYVBCZF5/S938WVLSBCZF5

Download and release notes

samloader download -m SM-S938W -r TLS -v S938WVLSBCZF5/S938WOYVBCZF5/S938WVLSBCZF5

Samsung's release notes and security patch level for this update: SM-S938W / TLS on doc.samsungmobile.com. What each part of the build number means: decode S938WVLSBCZF5.