How to update my samsung Android 4.4.2 galaxy core 2 model number SM-G355H

[Jmano]

My phone battery is getting over heat very often even after change to new battery

 

[H3aTeRzz]

Hi

Have you tried Wiping Cache Partition, or Full Factory Reset?

Cache Wipe - No data loss

Full Reset - ALL DATA LOSS....BACK UP YOUR DEVICE.

Chris