X520ZCS8CZF2 – Galaxy Tab S10 FE firmware
Build X520ZCS8CZF2 is a security update for the Galaxy Tab S10 FE (SM-X520)
on Android 16 (One UI 8). It first appeared on Samsung's servers on Jul 5, 2026 (method) and has reached
1 region so far. It keeps bootloader bit 8, so downgrading to the previous build X520XXS8CZF2 is still possible. Samsung still serves this file.
- Model
- SM-X520
- Android
- Android 16
- Type
- Security
- Bootloader bit
- 8
- First released
- Jul 5, 2026
- Regions
- 1
Rollout timeline by region
The date each region code (CSC) first received X520ZCS8CZF2, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
CHN | China | Jul 5, 2026 | day 0 | X520ZCS8CZF2/X520CHN8CZF2/X520ZCS8CZF2 |
Download and release notes
samloader download -m SM-X520 -r CHN -v X520ZCS8CZF2/X520CHN8CZF2/X520ZCS8CZF2Samsung's release notes and security patch level for this update: SM-X520 / CHN on doc.samsungmobile.com. What each part of the build number means: decode X520ZCS8CZF2.