
Samsung Galaxy YOUNG
The latest firmware for Samsung Galaxy YOUNG (GT-S6310N) is S6310NXXANR5 with Android 4.1.2 (Jelly Bean), released on July 10, 2014 for 12 regions (CSC). Every official firmware build for GT-S6310N, 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/S6310NXXANR5
All 13 builds in our database run Android 4.1.2 (Jelly Bean). The newest build, S6310NXXANR5, was released on July 10, 2014. No new build has appeared for 149 months, so regular updates for this model have most likely ended.

GT-S7508

GT-S6812

GT-S6500L

GT-S5690L

GT-S5670
The newest firmware for GT-S6310N runs Android 4.1.2 (Jelly Bean): build S6310NXXANR5, released on July 10, 2014.
The latest build for GT-S6310N, S6310NXXANR5, was released on July 10, 2014 (12 years ago).
GT-S6310N has had no new firmware for 149 months, so regular updates have most likely ended.
Yes, all firmware files for GT-S6310N are 100% official, original, and obtained directly from Samsung servers.
To flash GT-S6310N, 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 GT-S6310N.