Samsung Galaxy Grand Duos (GT-I9082L) Firmware Overview
What is the latest GT-I9082L firmware?
I9082LUBUBND1, released September 17, 2014 for region UPO with Android 4.1–4.3. The archive holds 2 official builds for this region.
Is the Samsung Galaxy Grand Duos still getting updates?
Most likely not: there has been no new firmware since September 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-I9082L firmware for region UPO
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.