Samsung Galaxy Pocket Neo Duos (GT-S5312B) Firmware Overview
What is the latest GT-S5312B firmware?
S5312BVJANB2, released May 2, 2014 for region ZTA with Android 4.1–4.3. The archive holds 2 official builds for this region.
Is the Samsung Galaxy Pocket Neo Duos still getting updates?
Most likely not: there has been no new firmware since May 2014, 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.
GT-S5312B firmware for region ZTA
How to Flash GT-S5312B Firmware
Put the Samsung Galaxy Pocket Neo 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.