Galaxy S21 Ultra 5G

Download Samsung Firmware SM-G998N

Samsung Galaxy S21 Ultra 5G

The latest firmware for Samsung Galaxy S21 Ultra 5G (SM-G998N) is G998NKSSCHZA9 with Android 15, released on March 12, 2026 for 4 regions (CSC). Every official firmware build for SM-G998N, newest first: one row per build with all regions (CSC) that received it.

Latest build
G998NKSSCHZA9 Android 15 · 7 months ago
Builds
50 builds
Regions (CSC)
4 regions

Firmware builds for SM-G998N

SM-G998N update history

SM-G998N started on Android 11 and has received 4 major Android upgrades; it now runs Android 15. The newest build, G998NKSSCHZA9, was released on March 12, 2026. No new build has appeared for 7 months, so regular updates for this model have most likely ended.

Device specifications

Launched with
Android 11
Display diagonal
17.3 cm (6.8")
Display resolution
3200 x 1440 pixels
Display type
Dynamic AMOLED 2X
RAM
12 GB
Rear camera resolution
108 MP
Rear camera type
Quad camera
Battery capacity
5000 mAh
Weight
228 g

Specifications of SM-G998, a regional variant of the same device. Chipset and SIM lines are left out: they can differ by region.

Changelog for SM-G998N

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Show 25 older builds
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Frequently Asked Questions

What is the latest Android version for SM-G998N?

The newest firmware for SM-G998N runs Android 15: build G998NKSSCHZA9, released on March 12, 2026.

When did SM-G998N get its last update?

The latest build for SM-G998N, G998NKSSCHZA9, was released on March 12, 2026 (7 months ago).

How often does SM-G998N get updates?

SM-G998N has had no new firmware for 7 months, so regular updates have most likely ended.

Is the firmware for SM-G998N official?

Yes, all firmware files for SM-G998N are 100% official, original, and obtained directly from Samsung servers.

How to flash Samsung SM-G998N using Odin?

To flash SM-G998N, you need to download the appropriate firmware, put your device into Download Mode, and use the Odin tool to load the BL, AP, CP, and CSC files.

Can I downgrade the Android version on SM-G998N?

Downgrading is only possible if the bootloader version (binary bit) of the old firmware matches the current one. Always check the binary version before flashing SM-G998N.