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4G connection

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A brand new loaner today. Has 4G LTE active.
 
This article states, " Challenges of Using 4G and 4G LTE
When comparing the two, one challenge of using 4G and 4G LTE – if you’re currently using 3G – is that you will probably need to purchase a new smartphone with 4G capabilities. 3G devices simply cannot provide the 4G experience. "

For techos out there - does that mean all of us with 3G - will never be able to access 4G or 4G LTE?

(from What's the difference between 4G and 4G LTE?)
 
This article states, " Challenges of Using 4G and 4G LTE
When comparing the two, one challenge of using 4G and 4G LTE – if you’re currently using 3G – is that you will probably need to purchase a new smartphone with 4G capabilities. 3G devices simply cannot provide the 4G experience. "

For techos out there - does that mean all of us with 3G - will never be able to access 4G or 4G LTE?

(from What's the difference between 4G and 4G LTE?)
Depends... I’m fairly sure that older cars have a 3G module in them but later ones have a 4G module but a 3G limited SIM card.
 
Depends... I’m fairly sure that older cars have a 3G module in them but later ones have a 4G module but a 3G limited SIM card.
I asked my delivery specialist about this in November and he has this to say:

"Tesla’s in Australia have a cellular modem that is only compatible with a Telstra 3G SIM card at the moment.
This is mainly due to Telstra 3G having the widest coverage.
It’s likely this will be reviewed in the future as we aim to match the fastest/most available networks."

So lets see what happens? I have heard of people paying $600USD to have their modems upgraded in the US from 3G to 4G LTE.
 
IIRC there was an upgrade path in the USA from 3G to LTE but it involved the exchanging a daughter card on the main board of the touch screen and presumably a new SIM. There was a circa $500 upgrade cost at the time.
I will definitely be interested if they offer the same here.