Ways to fix Samsung Galaxy S4 overheating issue
> First you need to update all the apps by going to Google play store as corrupted applications and the apps which are not updated can create this error. So update all the apps, which show a message ready to update. Re-check the apps after updating, and if you find any apps showing as not updated even though you have updated it, delete it.
> Faulty SD-card might be a strong reason behind this problem, so format the SD-card and then insert it in your phone to find out if the problem is reduced to some extent. Take backup of all the data before formatting.
> If you are facing the overheating issue due to the software-related problem, then OTA updates can fix the Samsung Galaxy S4...