The Galaxy S21 FE 5G supports Adaptive Fast Charging, and therefore is likely to get warm during charging. This is expected, especially if the device is being operated while it;s charging. If the device gets warm during normal use. Also Remove Case: Sometimes the phone back case also becomes a very big reason for the heating issues in your phone. Remove the case when you are playing games, consuming content, and while charging. It will help you to fix Samsung Galaxy S21 FE Heating issue.
In case the issue still occurs. Please register your concern in Samsung Members Application (Open Samsung Members Application > Support> Tap on error report > Type your query > Send).
