
Samsung Galaxy J3
The latest firmware for Samsung Galaxy J3 (SM-J327U) is J327UUES6BTL1 with Android 8.1.0 (Oreo), released on January 27, 2021 for 2 regions (CSC). Every official firmware build for SM-J327U, 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/J327UUES6BTL1
SM-J327U started on Android 7 and has received 1 major Android upgrade; it now runs Android 8.1.0 (Oreo). The newest build, J327UUES6BTL1, was released on January 27, 2021. No new build has appeared for 69 months, so regular updates for this model have most likely ended.
· The security of your device has been improved.
Box codes of SM-J327U for different colors and markets. Firmware is chosen by the model code SM-J327U and your region (CSC), not by the SKU.

SM-J327VPP

SM-J320VPP

SM-J326AZ

SM-J337A

SM-J330N
The newest firmware for SM-J327U runs Android 8.1.0 (Oreo): build J327UUES6BTL1, released on January 27, 2021.
The latest build for SM-J327U, J327UUES6BTL1, was released on January 27, 2021 (5 years ago).
SM-J327U has had no new firmware for 69 months, so regular updates have most likely ended.
Yes, all firmware files for SM-J327U are 100% official, original, and obtained directly from Samsung servers.
To flash SM-J327U, 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-J327U.