Samsung Galaxy Ace IIx (GT-S7560) Firmware Overview
What is the latest GT-S7560 firmware?
S7560XXBNI1, released October 22, 2014 for region AFR with Android 4.0. The archive holds 2 official builds for this region.
Is the Samsung Galaxy Ace IIx still getting updates?
Most likely not: there has been no new firmware since October 2014, so Android 4.0 is the last version this model got. The final builds below are still the best choice for a clean reinstall.
GT-S7560 firmware for region AFR
How to Flash GT-S7560 Firmware
Put the Samsung Galaxy Ace IIx 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.