A:AnswerYes. I added a 16GB micro sd to my 2017 fire 10. The cost of a micro sd varies but you can get one for under $30.00. It's also easy to insert into the Fire 10.
A:AnswerYes, you should be able to. I use it to mirror it with a fire stick. Basically it controls the Netflix app on the chrome cast/ firestick. It won’t mirror independent from the Netflix app.
A:AnswerHave you been able to connect to other wifis? does your phone connect to what you're trying to connect to? The last resort would be a hard factory reset. Use your one year warranty if you still have it.
A:AnswerSeems to me that you can't. And to top it off we purchased a HDMI - USB C adapter and the tablet tells us it detects water in the charging port. Doesn't tell us that when we try to just charge it though and goes away when we restart the tablet. Seems to me that Amazon didn't want this tablet to ever work with a TV.
