Galaxy S21 5G

Download Samsung Firmware SM-G9910

Samsung Galaxy S21 5G

The latest firmware for Samsung Galaxy S21 5G (SM-G9910) is G9910ZCUGHZE1 with Android 15, released on June 1, 2026 for 1 region (CSC). Every official firmware build for SM-G9910, newest first: one row per build with all regions (CSC) that received it.

Latest build
G9910ZCUGHZE1 Android 15 · 5 months ago
Builds
105 builds
Regions (CSC)
3 regions

Firmware builds for SM-G9910

Each firmware build has its own page at https://samfirm.shop/build/{PDA}, where {PDA} is the build number from the list above. Example: https://samfirm.shop/build/G9910ZCUGHZE1

SM-G9910 update history

SM-G9910 started on Android 11 and has received 4 major Android upgrades; it now runs Android 15. The newest build, G9910ZCUGHZE1, was released on June 1, 2026 with the January 2026 security patch. That patch (SMR Jan-2026) fixes 32 vulnerabilities, 2 of them critical. Updates have become rare: SM-G9910 received 5 builds over the last 12 months, in 3 different months.

Device specifications

Display diagonal
15.8 cm (6.2")
Display resolution
2400 x 1080 pixels
Display type
Dynamic AMOLED 2X
RAM
8 GB
Rear camera resolution
12 MP
Rear camera type
Triple camera
Battery capacity
4000 mAh
Weight
171 g

Specifications of SM-G991, a regional variant of the same device. Chipset and SIM lines are left out: they can differ by region.

Changelog for SM-G9910

• Stability and reliability
Device behavior has been improved.

These changes may vary depending on the model, country, or network operator of the customer environment.

• Security
The device is protected with improved security.

These changes may vary depending on the model, country, or network operator of the customer environment.

• Security

The device is protected with improved security.

These changes may vary depending on the model, country, or network operator of the customer environment.

One UI 7.0 Upgrade (Android 15)
Bold new look

Visual enhancements
Enjoy a more sophisticated and unique look. One UI 7 introduces a stunning redesign to key components including buttons, menus, notifications and control bars, providing a more consistent visual experience with curves and circles. Beautiful new colors, soft animations, and an innovative blur effect that's unique to One UI make information hierarchy clearer and help you focus on important information.

Reimagined Home screen
Fr...

• The latest Android security patch has been applied.
- Device security has been further enhanced.

Similar Models

Frequently Asked Questions

What is the latest Android version for SM-G9910?

The newest firmware for SM-G9910 runs Android 15: build G9910ZCUGHZE1, released on June 1, 2026.

When did SM-G9910 get its last update?

The latest build for SM-G9910, G9910ZCUGHZE1, was released on June 1, 2026 (4 months ago).

How often does SM-G9910 get updates?

Over the last 12 months SM-G9910 received 5 builds, with at least one new build in 3 different months.

Is the firmware for SM-G9910 official?

Yes, all firmware files for SM-G9910 are 100% official, original, and obtained directly from Samsung servers.

How to flash Samsung SM-G9910 using Odin?

To flash SM-G9910, 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-G9910?

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-G9910.