[sergers]

Even this article is inconclusive... There has been no definitive cause.

My initial presumption was shoddy batteries+ quick charge 3.0 extra fast charging + hot Qualcomm 820 just to add.

It was first Samsung phone to use quick charge 3.0. If there was a battery defect, rapid charging didn't help.

[lj3]

This is what I'm wondering. Did they fail to adequately test the quick charge feature or do they have a supply chain issue? The Nokia phone explosions were caused by Nokia accidentally buying counterfeit batteries because they sold more units that they had anticipated. A startup I worked for back then was created to solve that particular problem (Verical).