Is this really authentic solution from Samsung as I can see the provided URLs are not of samsung. Using pirated or unauthentic software will expire the warranty and future support from Samsung???

I have used Nokia, Vivo, Gionee, Oppo, MI and Samsung also in past but this never happened to be. Samsung this was not at all expected. Worst phone I have ever used in life. And who was the developer of this software who released the same in market w...