After Updation of My Samsung Galaxy S8 Plus On August 7th my Mobile behaviour changes. While am plauing games, & watching Videos It " pauses" automatically with in 2 or 3 minutes once. Please suggest

My Galaxy S8 plus getting too heat.. Why this problem occur. Suggest some remedies how to cool mobile.

My mobile not detecting SD card. It detects only SIM card. Plz give me suggestions.

Recently I updated my mobile with new software update. After that my mobile function changes, it's download speed reduces and play store apps dowlaod speed also very slow. Please suggest me how I recover my mobile with previous software and how could...