
Samsung Galaxy A3(2016)
The latest firmware for Samsung Galaxy A3(2016) (SM-A310F) is A310FXXS5CTK5 with Android 7.0 (Nougat), released on December 30, 2020 for 1 region (CSC). Every official firmware build for SM-A310F, 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/A310FXXS5CTK5
SM-A310F started on Android 5 and has received 2 major Android upgrades; it now runs Android 7.0 (Nougat). The newest build, A310FXXS5CTK5, was released on December 30, 2020 with the August 2019 security patch. No new build has appeared for 70 months, so regular updates for this model have most likely ended.
• The security of your device has been improved.
· The security of your device has been improved.
· The stability of SMS has been improved.
Box codes of SM-A310F for different colors and markets. Firmware is chosen by the model code SM-A310F and your region (CSC), not by the SKU.

SM-A310X

SM-A315N

SM-A320X

SM-A300XU

SM-A326K
The newest firmware for SM-A310F runs Android 7.0 (Nougat): build A310FXXS5CTK5, released on December 30, 2020.
The latest build for SM-A310F, A310FXXS5CTK5, was released on December 30, 2020 (5 years ago).
SM-A310F has had no new firmware for 70 months, so regular updates have most likely ended.
Yes, all firmware files for SM-A310F are 100% official, original, and obtained directly from Samsung servers.
To flash SM-A310F, 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-A310F.