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Consolidated eMMC Thread (MCU repair) (Black Center Screen)

Discussion in 'Model S' started by Wiki, Jan 8, 2020.

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The first post in this thread is a WikiPost, and can be edited by anyone with the appropriate permissions.
  1. Knightowl

    Knightowl Whovian

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    well I am looking forward to getting both my cars upgraded by @EV-Fixme to prevent this from happening again, just a matter of timing and logistics now.
     
    • Like x 1
  2. El3ktrk

    El3ktrk Member

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    So if this is done before failure then nothing is lost? Is the car still able to receive updates? Does anything change when doing preventative?
     
  3. byan1232

    byan1232 Member

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    Got my eMMC flash replaced this weekend with the help of @appleguru If you are in the east coast and looking for someone to replace your eMMC flash, reach out to @appleguru He is very knowledgable and has done many replacements already. It will take ~3-4 hours but well worth it. I guess I got so used to the slow MCU I forgot how fast it can be. I can honestly say my MCU is just as fast, if not faster, than when I first took delivery.

    I was considering paying Tesla ~$1600 to replace the MCU but decided not to as the replacement is a refurbished unit. Based on what I've read, the eMMC has a finite amount of cycles it can go through before completely failing. A replacement unit could have already had cycles used... meaning it might not last the same amount of time as when you first took delivery. The eMMC size that @appleguru gave me is also double the size of the one Tesla provides, which makes it last longer.

    Thanks @EV-Fixme as well for referring me. If you are looking for someone in the west coast DM @EV-Fixme
     
    • Like x 3
  4. GoBlue88

    GoBlue88 Member

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    Yeah, I lost my lifetime trip counter on the eMMC upgrade as well. Small price to pay for snappier MCU performance and to never have to worry about this issue killing my MCU again.
     
  5. dark cloud

    dark cloud Active Member

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    Correct

    Yes

    Yes, you have saved at least $1000, and the MCU will keep functioning as it did when new, but for 4-8 times as long as if you got the service centre to do it.

    Kind of sounds like a no brainer to me.
     
  6. El3ktrk

    El3ktrk Member

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    It does, if I’d kept up with forums. Mine completely failed, not even able to charge the car. So my car sits at the SC waiting for refurbished screen, ugh
     
  7. dark cloud

    dark cloud Active Member

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    I feel your pain. One little $20 chip....if Tesla just put the $30 one in instead.....
     
    • Like x 1
    • Funny x 1
  8. El3ktrk

    El3ktrk Member

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    Was that a bean counter decision, or bad engineering design? I need my pitchfork seen !
     
  9. appleguru

    appleguru Member

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    The tegras are made by nvidia afaik, so likely a standard part with 8GB flash. Still inexcusable for Tesla not to spec a larger/better part (SLC, or at least MLC in pSLC mode) especially now that they are refurbishing them and they know they don’t last.... they have made some improvements recently at least on the SW side.
     
    • Like x 1
  10. whitex

    whitex Well-Known Member

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    Tegra and emmc are two different chips. Tesla designed and makes the modules AFAIK, not nvidia (they look similar to the Nvidia VCM module, but at according to hackers who have compared them and reported that the connector is not even the same, so Tesla redesigned it).
     
  11. manstew

    manstew Member

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    2013 MS P85+ 105k miles, MCU went out, anyone who replaces those besides Tesla for 1600.00 in the Houston TX area?
     
  12. manstew

    manstew Member

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    Anyone know if MCU2 is available for model S my2013?
     
  13. Krash

    Krash Data Technician

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    Likely not but it varies by service center. Also, at most you need a working MCU to upgrade.
     
    • Disagree x 1
  14. Luv2preech

    Luv2preech Member

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    Satisfied customer here. If you have a bit diy, and view the video in this thread, it is really an easy process. Tony at EV-Fixme is knowledgeable and fast with the repair. I recommend his service be used sooner than later. I am impressed!
     
    • Like x 2
  15. tj1772

    tj1772 Member

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    I was in the same boat as you last year. I
    At this time they are only upgrading AP 2 and newer to get MCU 2. Eventually, from what I understand we can upgrade to MCU 2. It might be a year or longer away. I'm still waiting to get mine replaced. I also have 2013 Model S.
     
  16. EV-Fixme

    EV-Fixme Vendor

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    #596 EV-Fixme, Jun 11, 2020
    Last edited: Jun 11, 2020
    Added our videos for mcu removal tips, and video about the emmc's and the problem.
     
  17. CravingMender9

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    It is not available in any service center. And I don't see any reason to need a working MCU for MCU2 upgrade.
     
  18. dark cloud

    dark cloud Active Member

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    I can't see it either. I am sure there will be quite a few AP1 vehicles that have black MCU's from people holding out for an MCU2 upgrade when the time comes. If the service centres say "no, we need a working MCU1" and expect you to first get an MCU1 for $1800, and then sign up for $2500 upgrade to then have it promptly removed, crap will hit the fan.
     
  19. El3ktrk

    El3ktrk Member

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    I have 2014 S, it is currently at SC getting the MCU replace due to it failing. The pic I included was from the convo with the Tesla rep
     

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  20. EV-Fixme

    EV-Fixme Vendor

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    Orange County, CA
    MCU2 is not out yet for 13 cars, maybe it will be soon? We can help you fix yours if you want to ship us the board. We just posted our video with removal tips.

    Also MCU2 upgrade at a SC has no reason to need a working MCU1.
     
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