Download Samsung Firmware SM-L355N

Samsung Watch9 44mm

The latest firmware for Samsung Watch9 44mm (SM-L355N) is L355NKOS1AZH4 with Android 17, released on August 30, 2026 for 4 regions (CSC). Every official firmware build for SM-L355N, newest first: one row per build with all regions (CSC) that received it.

Latest build
L355NKOS1AZH4 Android 17 · 1 month ago
Builds
2 builds
Regions (CSC)
4 regions

Firmware builds for SM-L355N

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/L355NKOS1AZH4

SM-L355N update history

All 2 builds in our database run Android 17. The newest build, L355NKOS1AZH4, was released on August 30, 2026. Updates have become rare: SM-L355N received 2 builds over the last 12 months, in 2 different months.

Device specifications

Launched with
Wear OS
Display diagonal
3.81 cm (1.5")
Display technology
AMOLED
Display resolution
480 x 480 pixels
RAM
2 MB
Battery capacity
445 mAh
Weight
34 g
Band colour
Green

Specifications of SM-L355F, a regional variant of the same device. Chipset and SIM lines are left out: they can differ by region.

Similar Models

Frequently Asked Questions

What is the latest Android version for SM-L355N?

The newest firmware for SM-L355N runs Android 17: build L355NKOS1AZH4, released on August 30, 2026.

When did SM-L355N get its last update?

The latest build for SM-L355N, L355NKOS1AZH4, was released on August 30, 2026 (1 month ago).

How often does SM-L355N get updates?

Over the last 12 months SM-L355N received 2 builds, with at least one new build in 2 different months.

Is the firmware for SM-L355N official?

Yes, all firmware files for SM-L355N are 100% official, original, and obtained directly from Samsung servers.

How to flash Samsung SM-L355N using Odin?

To flash SM-L355N, 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-L355N?

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-L355N.