
Samsung Gear 2 NEO
The latest firmware for Samsung Gear 2 NEO (SM-R381) is R381XXU0BPK1 with Android 2.2.1.2, released on November 15, 2016 for 71 regions (CSC). Every official firmware build for SM-R381, newest first: one row per build with all regions (CSC) that received it.
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/R381XXU0BPK1
All 7 builds in our database run Android 2.2.1.2. The newest build, R381XXU0BPK1, was released on November 15, 2016. No new build has appeared for 121 months, so regular updates for this model have most likely ended.
Box codes of SM-R381 for different colors and markets. Firmware is chosen by the model code SM-R381 and your region (CSC), not by the SKU.

SM-R380

SM-R350

SM-R770

SM-R885F

SM-R540N
The newest firmware for SM-R381 runs Android 2.2.1.2: build R381XXU0BPK1, released on November 15, 2016.
The latest build for SM-R381, R381XXU0BPK1, was released on November 15, 2016 (9 years ago).
SM-R381 has had no new firmware for 121 months, so regular updates have most likely ended.
Yes, all firmware files for SM-R381 are 100% official, original, and obtained directly from Samsung servers.
To flash SM-R381, 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.
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-R381.