
Samsung Galaxy Pocket Duos
The latest firmware for Samsung Galaxy Pocket Duos (GT-S5302) is S5302XXLJ3 with Android 2.3.6 (Gingerbread), released on October 18, 2012 for 1 region (CSC). Every official firmware build for GT-S5302, 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/S5302XXLJ3
All 2 builds in our database run Android 2.3.6 (Gingerbread). The newest build, S5302XXLJ3, was released on October 18, 2012. No new build has appeared for 170 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-S5302 runs Android 2.3.6 (Gingerbread): build S5302XXLJ3, released on October 18, 2012.
The latest build for GT-S5302, S5302XXLJ3, was released on October 18, 2012 (14 years ago).
GT-S5302 has had no new firmware for 170 months, so regular updates have most likely ended.
Yes, all firmware files for GT-S5302 are 100% official, original, and obtained directly from Samsung servers.
To flash GT-S5302, 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-S5302.