Galaxy Watch9

Samsung Galaxy Watch9 SM-L340 firmware

The latest firmware for Samsung Galaxy Watch9 (SM-L340) is L340XXU1AZJ3 with Android 17, released on November 5, 2026 for 67 regions (CSC). Every official firmware build for SM-L340, newest first: one row per build with all regions (CSC) that received it.

Latest build
L340XXU1AZJ3 Android 17 · 9 days ago
Builds
7 builds
Regions (CSC)
68 regions

Firmware builds for SM-L340

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/L340XXU1AZJ3

SM-L340 update history

All 7 builds in our database run Android 17. The newest build, L340XXU1AZJ3, was released on November 5, 2026 with the October 2026 security patch. That patch (SMR Oct-2026) fixes 62 vulnerabilities, 9 of them critical. Over the last 12 months SM-L340 received 7 builds, spread over 4 different months.

Changelog for SM-L340

• 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.

· Device stability improvements, bug fixes.
· New and / or enhanced features.
· Further improvements to performance.

New firmware for other devices

All latest builds

Similar Models

Frequently Asked Questions

What is the latest Android version for SM-L340?

The newest firmware for SM-L340 runs Android 17: build L340XXU1AZJ3, released on November 5, 2026.

When did SM-L340 get its last update?

The latest build for SM-L340, L340XXU1AZJ3, was released on November 5, 2026 (9 days ago).

How often does SM-L340 get updates?

Over the last 12 months SM-L340 received 7 builds, with at least one new build in 4 different months.

Is the firmware for SM-L340 official?

Yes, all firmware files for SM-L340 are 100% official, original, and obtained directly from Samsung servers.

How to flash Samsung SM-L340 using Odin?

To flash SM-L340, 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-L340?

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-L340.

Is this the stock ROM or flash file for SM-L340?

Yes. Every build on this page is the official stock ROM for SM-L340 from Samsung's update server, the same package other sites call the flash file or the software update. It installs with Odin on a Windows PC.

Does flashing firmware remove the FRP lock on SM-L340?

No. Factory Reset Protection is tied to the Google account that was on the phone and survives a firmware flash. Sign in with that account or use the legal options in our FRP guide.