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DIY LTE Upgrade?
- Thread starter random155
- Start date
Ostrichsak
Active Member
1) it's not a simple SIM card replacement. It requires removing your MCU, disassembling your MCU and changing out an actual board component that happens to contain a new 4g/LTE SIM card to function.
2) I've seen some on forums more recently say they were charged under $400 (I think I was reading $370 in a couple of posts) by their local service center to do the upgrade including parts and labor. YMMV
2) I've seen some on forums more recently say they were charged under $400 (I think I was reading $370 in a couple of posts) by their local service center to do the upgrade including parts and labor. YMMV
SigRed12
Member
According to epic, SIM card is a restricted Tesla part. Also you would have to change out the antenna wire to the driver mirror. Not trivial. And I don’t know if there is a Toolbox setting that needs to be set as well.
FWIW - Tesla replaced mine with a MCU replacement. I don’t notice much difference over 4.5 years of having 3G. Just wait until your MCU dies and do it then, if you really want it. 
Thats exactly what I have been thinking. I know at some point it will go kuput, so is it worth the $500 now? I don't think so either... I just hope it dies within the next year so it's covered under warranty.FWIW - Tesla replaced mine with a MCU replacement. I don’t notice much difference over 4.5 years of having 3G. Just wait until your MCU dies and do it then, if you really want it.
SigRed12
Member
I replace mine before the eMMC issue was known and spent the $500 for Tesla to install it. Last Friday, my MCU went kuput and now I'm getting the upgrade again. I told Tesla I want the LTE board (and presumably) the SIM card (fingers crossed) from the old unit since I paid for them. I'll let you know what big brother T does when I get my car back later. On a brighter note, I was given a Model X to play with over the weekend ... the kids really dig the falcon doors, but I digress.
Exactly why Im waiting for my warranty to expire before I pull the trigger on this upgrade.
Does the new SIM card that Tesla provides get activated once you turn the car on after the install?
Plasmid_Boy
Member
Just to confirm that the SIM card still can be purchased from the SC. I recently bought 2 LTE boards along with 2 SIMs.
During disassembly, I accidentally ripped a ribbon cable right off of the back of the screen.
Luckily the damage was repairable. The map loads faster than before for me and I feel that it is worth $96.
During disassembly, I accidentally ripped a ribbon cable right off of the back of the screen.
Luckily the damage was repairable. The map loads faster than before for me and I feel that it is worth $96.
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Rockwell
Member
SigRed12
Member
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