Samsung Galaxy Music Duos (GT-S6012B) Firmware Overview
What is the latest GT-S6012B firmware?
S6012BVJUBMH1, released August 12, 2013 for region ZTR with Android 4.1–4.3. The archive holds 2 official builds for this region.
Is the Samsung Galaxy Music Duos still getting updates?
Most likely not: there has been no new firmware since August 2013, 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-S6012B firmware for region ZTR
How to Flash GT-S6012B Firmware
Put the Samsung Galaxy Music 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.