
Samsung Galaxy J2 Pro
The latest firmware for Samsung Galaxy J2 Pro (SM-J250N) is J250NKOU1ARL1 with Android 7.1.1 (Nougat), released on December 18, 2018 for 1 region (CSC). Every official firmware build for SM-J250N, 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/J250NKOU1ARL1
All 2 builds in our database run Android 7.1.1 (Nougat). The newest build, J250NKOU1ARL1, was released on December 18, 2018. No new build has appeared for 95 months, so regular updates for this model have most likely ended.
Specifications of SM-J250F, a regional variant of the same device. Chipset and SIM lines are left out: they can differ by region.

SM-J250Y

SM-J260A

SM-J337A

SM-J330N

SM-J327VPP
The newest firmware for SM-J250N runs Android 7.1.1 (Nougat): build J250NKOU1ARL1, released on December 18, 2018.
The latest build for SM-J250N, J250NKOU1ARL1, was released on December 18, 2018 (7 years ago).
SM-J250N has had no new firmware for 95 months, so regular updates have most likely ended.
Yes, all firmware files for SM-J250N are 100% official, original, and obtained directly from Samsung servers.
To flash SM-J250N, 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-J250N.