Why is that all of a sudden. My not 10 plus just started running like utter garbage. I can't wireless charge any more. Also I just bought the galaxy tab a7. Because the website said that you want use it a second screen for my windows 10 laptop. The sole reason I bought it is because of this. I can't even link my phone to the tablet. What is going here? Before anyone asks, yes everything is up to date. I am a beta tester for many companies and programs out there. I know my way the technology world. But yet this just has me scratching my head.