I think battery is the major problem. I had a s6 and I wasn't able to replace it battery. And, I had to dump it after only 3 years of purchase. Personally speak

I think battery is the major problem. I had a s6 and I wasn't able to replace it battery. And, I had to dump it after only 3 years of purchase. Personally speaking, companies must be forced to provide official battery for at least 5 years.