Software problems of the 2019 Tesla Model X

Two major issues. On June 23, after a software update, I left to run some errands. I got a message that the update didn't install properly, but given that the functions of the update didn't seem critical, I decided to wait to try and reinstall. I was at a stop light in the center lane on wisconsin avenue in DC (a very busy street), when I went to go as the light turned green, my entire screen went black and I could not start the car. My hazard lights wouldn't even go on. Thankfully, I could roll down my window and wave cars to go by. I thank god that my children weren't with me, as I could have easily been in a catastrophic accident in a very busy intersection. After a couple of minutes of great distress, the car started again, but my navigation, auto drive, etc. Were not working. I called Tesla and they resent the update and it installed fine, but took about two hours and three tries??? this was a nightmare. My purse was in the backseat with my phone and I was so busy waving cars around me I couldn't get to it. And no power = no Tesla emergency assistance. How do you get help? this was terrifying. My second issue is that my lte rarely works. I've scheduled service, but they can't accommodate for another two weeks. That often leaves me with no navigation, no satellite radio, etc. , etc. My app now shows my car is charging in maryland. . . When it's in a parking garage in DC. Again, not helpful. Having this experience and the failing lte, I am 100% convinced that you need to have carplay, where at least you have a back up for navigation and voice to text ability. It isn't safer to only have lte if it doesn't work. Mine went out this morning during my commute and never came back. I even tried using my phone hotspot for wifi and that didn't work either. How are you going to offer netflix and voice text if the lte and wifi don't work? how is that safer?.