Download Samsung Firmware SM-L3550
Samsung Watch9 44mm
The latest firmware for Samsung Watch9 44mm (SM-L3550) is L3550ZCS1AZH4 with Android 17, released on August 31, 2026 for 1 region (CSC). Every official firmware build for SM-L3550, newest first: one row per build with all regions (CSC) that received it.
- Latest build
- L3550ZCS1AZH4
- Builds
- 2 builds
- Regions (CSC)
- 1 region
Firmware builds for SM-L3550
SM-L3550 update history
All 2 builds in our database run Android 17. The newest build, L3550ZCS1AZH4, was released on August 31, 2026 with the August 2026 security patch. Updates have become rare: SM-L3550 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.
Changelog for SM-L3550
Frequently Asked Questions
What is the latest Android version for SM-L3550?
The newest firmware for SM-L3550 runs Android 17: build L3550ZCS1AZH4, released on August 31, 2026.
When did SM-L3550 get its last update?
The latest build for SM-L3550, L3550ZCS1AZH4, was released on August 31, 2026 (1 month ago).
How often does SM-L3550 get updates?
Over the last 12 months SM-L3550 received 2 builds, with at least one new build in 2 different months.
Is the firmware for SM-L3550 official?
Yes, all firmware files for SM-L3550 are 100% official, original, and obtained directly from Samsung servers.
How to flash Samsung SM-L3550 using Odin?
To flash SM-L3550, 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-L3550?
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-L3550.