X520XXUBDZJA – Galaxy Tab S10 FE firmware

Build X520XXUBDZJA is a feature update for the Galaxy Tab S10 FE (SM-X520) on Android 17 (One UI 9). It first appeared on Samsung's servers on Nov 4, 2026 (method) and has reached 1 region so far. It keeps bootloader bit 11, so downgrading to the previous build X520XXSBCZI2 is still possible. Samsung still serves this file.

Model

SM-X520

Android

Android 17

Type

Feature

Bootloader bit

11

First released

Nov 4, 2026

Regions

1

Not yet released in 16 regions that are still on an older build: BRI, CAU, EUX, EUY, ILO, INS, MXO, TGY, TUR, XAC, XAR, XID, XJP, XSG and 2 more.

Rollout timeline by region

The date each region code (CSC) first received X520XXUBDZJA, counted from the first release.

Download and release notes

samloader download -m SM-X520 -r KOO -v X520XXUBDZJA/X520OXMBDZJA/X520XXUBDZJA

Samsung's release notes and security patch level for this update: SM-X520 / KOO on doc.samsungmobile.com. What each part of the build number means: decode X520XXUBDZJA.