A:AnswerNo. If your trying to put your screen from your tablet to a tv, chromecast will work if you have WiFi and your TV doesn't support screen mirroring. Else if you don't have WiFi the Microsoft wireless hdmi adapter will work.
A:AnswerMost likely no. I dont know for sure, but samsung usually makes their accessories only work for their own devices.
Check amazon for MHL adaptirs for universal use.
A:AnswerTry altering the order in which you plug in the cords. Mine will not work with the charger plugged in and only if I plug the adapter into the phone then the hdmi into the adapter.