Samsung Galaxy Core Plus (SM-G350) Firmware Overview
What is the latest SM-G350 firmware?
G350XXUAOD1, released April 21, 2015 for region ATO with Android 4.2.2. The archive holds 2 official builds for this region.
Is the Samsung Galaxy Core Plus still getting updates?
Most likely not: there has been no new firmware since April 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.
SM-G350 firmware for region ATO
How to Flash SM-G350 Firmware
Put the Samsung Galaxy Core Plus 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.