Samsung Galaxy Star Duos (GT-S5283B) Firmware Overview
What is the latest GT-S5283B firmware?
S5283BVJANH1, released June 30, 2015 with Android 4.1–4.3. The archive holds 2 official builds across 1 region (CSC). Each one is the full stock ROM (flash file) for Odin, not an OTA patch.
Is the Samsung Galaxy Star Duos still getting updates?
Most likely not: there has been no new firmware since June 2015, so Android 4.1–4.3 is the last version this model got. The final builds below are still the best choice for a clean reinstall.
All GT-S5283B firmware builds
How to Flash GT-S5283B Firmware
Put the Samsung Galaxy Star Duos into Download Mode, load the BL, AP, CP and CSC files into Odin on a Windows PC and press Start. Use HOME_CSC to keep your data, CSC for a full wipe.