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Had to use the card on my return drive home today. How many of you carry it with you?
I carry it in my wallet. Glad too. Sounds like a system thing. My phone had just update to Android 11 and I thought that caused it. But my wife's iPHone has the problem as well.

I don't understand. I thought it was supposed to use bluetooth once paired. Why is a system problem doing anything with my app/car?

I was able to get to the log in screen but after logging in, the only result is a black that after awhile show the image below. That string changes every time.

Screenshot_20200923-140223.png
 
Normally, if using the App it does need a Data connection, that is why they tell you to always carry the card in case you do not have a Data Connection. If you have a newer Android Phone with a NFC chip you can use the Phone on the door pillar in place of the Card. Used in this manner you do not need a Data Connection...
 
Normally, if using the App it does need a Data connection, that is why they tell you to always carry the card in case you do not have a Data Connection. If you have a newer Android Phone with a NFC chip you can use the Phone on the door pillar in place of the Card. Used in this manner you do not need a Data Connection...

The app does not need a data connection to enter the car. But it does need a previously logged in app session so that Bluetooth can authenticate. Thats why you can enter the whilst in a deep underground carpark and not a radio wave in sight. However, if you log the app out, you are in trouble without keycard etc.
 
I guess I'll have to wait for the next outage to test this out. I do have NFC on but when it first happened I figured it was the Android update (had just updated to 11 a few minutes before). I tried rebooting and then uninstall/re-install so I'm logged out until the system is back online. But in the meantime, I had bought another set of cards. You can activate those while the system is out. So that is totally within the realm of the car itself.
 
PSA: With the Tesla systems outage, you need to double check that your car actually locks when you walk away from it. Mine did not and I had to tap the card on the B pillar to lock it.

The app on my iPhone XS got logged out.