Samsung Galaxy Y Pro Duos (GT-B5512) Firmware Overview
What is the latest GT-B5512 firmware?
B5512XXLG3, released July 27, 2012 for region XSK with Android 2.3.6. The archive holds 2 official builds for this region.
Is the Samsung Galaxy Y Pro Duos still getting updates?
Most likely not: there has been no new firmware since July 2012, so Android 2.3.6 is the last version this model got. The final builds below are still the best choice for a clean reinstall.
GT-B5512 firmware for region XSK
How to Flash GT-B5512 Firmware
Put the Samsung Galaxy Y Pro 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.