Samsung Galaxy Grand Duos (GT-I9082L) Firmware Overview
What is the latest GT-I9082L firmware?
I9082LVJUBOI2, released October 15, 2015 for region ZTM with Android 4.2.2. The archive holds 4 official builds for this region.
Is the Samsung Galaxy Grand Duos still getting updates?
Most likely not: there has been no new firmware since October 2015, so Android 4.2.2 is the last version this model got. The final builds below are still the best choice for a clean reinstall.
GT-I9082L firmware for region ZTM
How to Flash GT-I9082L Firmware
Put the Samsung Galaxy Grand 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.