Samsung Galaxy Tab 3 Kids (SM-T2105) Firmware Overview
What is the latest SM-T2105 firmware?
T2105UEAOE1, released May 19, 2015 for region XAR with Android 4.1.2. The archive holds 2 official builds for this region.
Is the Samsung Galaxy Tab 3 Kids still getting updates?
Most likely not: there has been no new firmware since May 2015, so Android 4.1.2 is the last version this model got. The final builds below are still the best choice for a clean reinstall.
SM-T2105 firmware for region XAR
How to Flash SM-T2105 Firmware
Put the Samsung Galaxy Tab 3 Kids 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.