SM-X946N firmware

Stock firmware and official updates for the Samsung Galaxy Tab S12 Ultra (SM-X946N), by region.

Software support

Security updates untilSep 30, 2033As published by Samsung

Latest firmwareAndroid 17X946NKOU1AZH3 · built Aug 10, 2026

RegionBuildAndroidSecurity patchDateDetails

South Korea KOOBuildX946NKOU1AZH3AndroidAndroid 17Security patch—BuiltAug 10, 2026DetailsDownload

Builds in our firmware catalog, newest first.

BuildAndroidBuiltRegions

X946NKOU1AZH3AndroidAndroid 17BuiltAug 10, 2026Regions1 CSC

Taken from the SM-X946B; this model can differ (chipset, network bands).

Display size: 369.9mm (14.6" full rectangle) / 367.2mm (14.5" rounded corners)
Resolution: 2960 x 1848 (WQXGA+)
Display type: Dynamic AMOLED 2X