Tesla infotainment system upgradeable from MCU1 to MCU2

[Trebek1762]

So according to our very own verygreen (on twitter)...

"for ap2+ cars there's now a bulletin so if you need a replacement they are suppsoed to give you mcu2 but it's not advertised and not all service centers appear to be doing it. Don't go about breaking your MCUs!"

 

[viper2ko]

So according to our very own verygreen (on twitter)...

"for ap2+ cars there's now a bulletin so if you need a replacement they are suppsoed to give you mcu2 but it's not advertised and not all service centers appear to be doing it. Don't go about breaking your MCUs!"

Oh boy. Get the popcorn ready.

 

[DukeofURL]

So according to our very own verygreen (on twitter)...

"for ap2+ cars there's now a bulletin so if you need a replacement they are suppsoed to give you mcu2 but it's not advertised and not all service centers appear to be doing it. Don't go about breaking your MCUs!"

Also, if you need a new screen they can just replace the screen, not the whole MCU (plus dash cluster with a retrofit). I was wondering what they’d do when they ran out of tegra MCUs though.

 

[MorrisonHiker]

So according to our very own verygreen (on twitter)...

"for ap2+ cars there's now a bulletin so if you need a replacement they are suppsoed to give you mcu2 but it's not advertised and not all service centers appear to be doing it. Don't go about breaking your MCUs!"

Do you have a link to the Tweet?

 

[Trebek1762]

green on Twitter

 

[Snowstorm]

So according to our very own verygreen (on twitter)...

"for ap2+ cars there's now a bulletin so if you need a replacement they are suppsoed to give you mcu2 but it's not advertised and not all service centers appear to be doing it. Don't go about breaking your MCUs!"

If true, this would cause a situation where we have AP2.0 with MCU2, something that had never occurred. Now, we think the AP and MCU are not tightly couples, but it still is a new setup that needs to be validated.

Also, in MCU1, the IC is a separate compute unit data linked to the MCU. In MCU2, it is just a screen. How does the MCU2 integrated with the IC previously hooked up to MCU1 via data link? Does MCU2 provide the same data output? Or is the IC also replaced?

 

[Trebek1762]

Both need to be replaced

 

[appleguru]

If true, this would cause a situation where we have AP2.0 with MCU2, something that had never occurred. Now, we think the AP and MCU are not tightly couples, but it still is a new setup that needs to be validated.

Also, in MCU1, the IC is a separate compute unit data linked to the MCU. In MCU2, it is just a screen. How does the MCU2 integrated with the IC previously hooked up to MCU1 via data link? Does MCU2 provide the same data output? Or is the IC also replaced?

MCU2 + AP2 should really be a non-issue... but sure, is a HW config that they would have to validate.

Regarding the IC, we don't know yet since nobody has done the retrofit that I am aware of. Could be that they swap ICs... or could be that the retrofit MCU2 works with the existing Tegra IC.

 

[bmah]

MCU2 + AP2 should really be a non-issue... but sure, is a HW config that they would have to validate.

As opposed to MCU2 + AP1, which I'm gonna guess (based on no actual data whatsoever) is never ever going to happen.

Bruce.

 

[MorrisonHiker]

If true, this would cause a situation where we have AP2.0 with MCU2, something that had never occurred. Now, we think the AP and MCU are not tightly couples, but it still is a new setup that needs to be validated.

Also, in MCU1, the IC is a separate compute unit data linked to the MCU. In MCU2, it is just a screen. How does the MCU2 integrated with the IC previously hooked up to MCU1 via data link? Does MCU2 provide the same data output? Or is the IC also replaced?

I offer my AP2 S100D up as a guinea pig!

It will be interesting to find out what happens with the instrument cluster screen.

 

[Trebek1762]

I offer my AP2 S100D up as a guinea pig!

It will be interesting to find out what happens with the instrument cluster screen.

Musk confirms upgradeability from MCU1 to MCU2

check the link to one of my prior posts (again quoting green)

 

[Krash]

Both need to be replaced

The old IC would certainly run with MCU2 installed, since it will run with no MCU installed, but it may not be a supported configuration.

 

[robby]

Also, in MCU1, the IC is a separate compute unit data linked to the MCU. In MCU2, it is just a screen. How does the MCU2 integrated with the IC previously hooked up to MCU1 via data link? Does MCU2 provide the same data output? Or is the IC also replaced?

MCU2 + AP2 should really be a non-issue... but sure, is a HW config that they would have to validate.

Regarding the IC, we don't know yet since nobody has done the retrofit that I am aware of. Could be that they swap ICs... or could be that the retrofit MCU2 works with the existing Tegra IC.

It's been done. IC was replaced.

 

[Snowstorm]

It's been done. IC was replaced.

Can you elaborate on how do you get something like that done?

 

[CRASHER]

I am getting the MCU replaced on my Nov.2017

built MS. And SC will only install MCU1, they will not install MCU2​

 

[drklain]

Is it your MCU that is being replaced or just the screen? People call the screen the MCU when in fact it is just a display for the MCU computer.

 

[robby]

Can you elaborate on how do you get something like that done?

I wish I knew a generalizable way, but unfortunately it was a unique situation. There was a vehicle that had repeated issues with MCU1 units, and the SC did a MCU2 retrofit to work around them (I presume in consult with HQ/engineering since I don't think there was a bulletin at the time, but I don't actually know that). The same SC has since rejected subsequent requests.

 

[ChrML]

As opposed to MCU2 + AP1, which I'm gonna guess (based on no actual data whatsoever) is never ever going to happen.

Bruce.

If Musk keeps his promise to allow MCU1 to MCU2 upgrades, then AP1+MCU2 will definitely happen. AP2.5 and AP2 upgraded to HW3 are the simplest MCU upgrades. But the AP2.0 and AP1 configurations require testing by Tesla engineering.

I just hope for the sake of AP1 and AP2.0 owners they don't find hacks in their software causing this configuration to cause more issues than it's worth fixing. If so they are likely to only offer it to AP2.5 owners ...

 

[DukeofURL]

AP2.5 and AP2 upgraded to HW3 are the simplest MCU upgrades.

To my knowledge, there's no MCU upgrade included as part of the AP upgrade. The APE module can be easily swapped out for HW3 without touching the MCU (which runs infotainment and settings/control interface), similar to the way you can upgrade your home theater stereo system without upgrading your TV.

 

[ChrML]

To my knowledge, there's no MCU upgrade included as part of the AP upgrade. The APE module can be easily swapped out for HW3 without touching the MCU (which runs infotainment and settings/control interface), similar to the way you can upgrade your home theater stereo system without upgrading your TV.

Correct, the chance of HW3 requiring an upgrade to MCU2 is almost zero. That would be insane.