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Car Computer - SD Card

Hi Guys,

I live in Sri Lanka and order a Model 3 from the UK. The SIM card that came pre-installed with the car wasn't working so I found a guide on how to change the SIM and took it to a garage and was able to get this done. However, whilst chasing the SIM, the person doing this for me mistakenly removed the SD Card from the car computer. When re-installing it, rather than going into the slot the SD card fell into the part of the car computer in between the slot and the metal plate and I am now unable to recover it without taking apart the car computer, which I was reluctant to let them do.

My question is, is it an issue to not have the SD card in the card computer? I saw that it was an 8GB Mini SD Card, so can I buy one and insert a new SD Card or do I have to get one from Tesla? Any advice would be helpful.

IMG_1182.jpg


I have a Model 3 manufactured in September of 2019, with FSD and HW3.0.

Thanks.
 

Perscitus

Member
Jan 29, 2019
902
632
New York
Good question. Why dont you try it and let us know, post up your experience and findings.

Hopefully some of the Ukrainian and Central/Eastern European owners chime in re the SD card. They typically end up unchaining their American-sourced Teslas to provide data and allow EU supercharger network charging.

Would be great if you could cross reference the eSIM replacement guide as well. Even if just for a EMEA-spec HW3 car.
 
Hi Guys,

I live in Sri Lanka and order a Model 3 from the UK. The SIM card that came pre-installed with the car wasn't working so I found a guide on how to change the SIM and took it to a garage and was able to get this done. However, whilst chasing the SIM, the person doing this for me mistakenly removed the SD Card from the car computer. When re-installing it, rather than going into the slot the SD card fell into the part of the car computer in between the slot and the metal plate and I am now unable to recover it without taking apart the car computer, which I was reluctant to let them do.

My question is, is it an issue to not have the SD card in the card computer? I saw that it was an 8GB Mini SD Card, so can I buy one and insert a new SD Card or do I have to get one from Tesla? Any advice would be helpful.

View attachment 563256

I have a Model 3 manufactured in September of 2019, with FSD and HW3.0.

Thanks.

Sd cards are just sd cards.... unless tesla preloads it with something , it's not going to do anything different.
You wont mess anything up inserting a blank sd card in, so I would try it.
 
So I closed the car up and drove it home and it seemed to work without an issue.

On the SIM card change guide, I found a copy of the Tesla Service manual available online at cardiagn.com. I downloaded it, went through it and created a guide for the garage to follow (Some parts shown are for LHD, but are the same on RHD model as well). I have attached the guide incase anyone wants to take a look. Whilst doing it, we realized we didn't have to actually remove the passenger side knee airbag. The Car Computer was accessible without it. The other difference is the actual SIM card change process, it shows a HW2.5, where as my car has HW3.0 installed. I am still waiting for the SIM card to get activated from my carrier and will let everyone know if the installation worked once that has happened. (Please note: prior to doing this I reached out to Tesla and Signed a Non-Tesla SIM card Waiver form).

Re SD Card, my concern was what Travelandlive mentioned on whether there was any preloaded software? I will see how it goes and post if I get any messages form the car on the SD Card.
 

Attachments

  • Tesla Model 3 Sim Replacement Guide.pdf
    3.7 MB · Views: 292
Hey Guys, I just wanted to post an update. I noticed after the SD card was removed, that the car was giving me a "Reduced Power Mode" warning. I also noticed that car was much slower to wake and that it was not entering a "Deep Sleep" state for a few hours, which was causing my battery to drain much faster than anticipated.

I spoke to a few repair shops in the UK, whom have worked on MCUs and they recommended that I just buy and install a regular SD card. They said the MCU would format it as required and create the necessary files. I also spoke to a Tesla Service center and found that they recommend a "Class 4" SD card.

I was able to do this. For the first couple of hours after installing the SD card, I did not notice any difference in the behavior of the car (The Errors were still popping up), however after a couple of hours everything reverted back to normal.
 
H
Hi Sadiqomar,
Did you manage to get your sim card working as well ?
Hey, I did. I had to talk to Tesla. They have to change the APN settings. The first few people I spoke to said I had to send it in (however my car being in Sri Lanka, that was an issue) so I tried calling again a few times. Eventually I got someone who was able to make the change remotely.
 

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