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I have an MCU1.0 (sometimes called MCU0) on my 2014 S.
I bought a new MCU1.5 on eBay, and was hoping swapping my old one for the new parts.
I believe I need the following:
– Rear View Camera HSD Jumper (1127304-00-B)
– ANTENNA , BLUETOOTH (1052393-00-B)
– Replacement eMMC chip (Do you know the part number Tesla uses for their upgrade? I think it's a 64GB Micron)
– Use JTAG with 2.8V power supply to read the old eMMC and write it to the new one
TeslaTap makes it sound like there might be a need to modify the harness as well? It does not show how though.
Autopilot, Processors and Hardware – MCU & HW Demystified – TeslaTap
If MCU1.0->1.5 is too complex, I might just swap the LTE board and do the eMMC repair.
I thought it might be worth upgrading since I have the parts anyway (and potentially getting UHFS? )
I bought a new MCU1.5 on eBay, and was hoping swapping my old one for the new parts.
I believe I need the following:
– Rear View Camera HSD Jumper (1127304-00-B)
– ANTENNA , BLUETOOTH (1052393-00-B)
– Replacement eMMC chip (Do you know the part number Tesla uses for their upgrade? I think it's a 64GB Micron)
– Use JTAG with 2.8V power supply to read the old eMMC and write it to the new one
TeslaTap makes it sound like there might be a need to modify the harness as well? It does not show how though.
Autopilot, Processors and Hardware – MCU & HW Demystified – TeslaTap
If MCU1.0->1.5 is too complex, I might just swap the LTE board and do the eMMC repair.
I thought it might be worth upgrading since I have the parts anyway (and potentially getting UHFS? )
Tesla engineer got into my car and reprogrammed some firmware over the LTE then sent me the latest
update via LTE while I was driving kid to school. Returned back home and I could now program the HomeLink,
browse via WiFi, and software updated flawlessly. Took car for a victory run shopping, love my MS.
Now fingers crossed until next mishap, nothing like another broken door handle for good luck
If your car didn't come with UHFS, aren't you missing an amp, subwoofer and a lot of wiring?
yeah, more work will be involved to get UHFS. But for now I am just doing the MCU swap. I want to make sure I have the process down before starting.
Can an MCU swap be done by just copying the eMMC over? Or is there anything else needed?
whitex
Well-Known Member
Tesla doesn't sell just the eMMC chip replacement. The closest thing would be an entire Tegra board.
What method using JTAG did you find out there that allows you to read from the Tegra board?
If you are in fact willing to swap out just the emmc chip (involves board rework), just keep your original MCU and only swap the emmc chip. There are people here who will do that swap for you for a fee too, including reading out the old chip before desoldering it.
Hardware and eMMC copying aside, wouldn't you also have to edit the gateway config file? That requires serious banking skills, more every time they tighten security.
BrownOuttaSpec
Active Member
Just a data point for you guys, my car is under warranty and I have a appointment on Oct 6th to take it in for them to "check out" (They haven't said what they are actually planning on doing yet maybe I can get a discounted MCU2 upgrade).
This is the 2nd appointment in 2 months for signs of eMMC failing. 1st time mobile tech came out and check things and said everything was fine but he setup my car to be monitored more closely or flagged of some sort and to report any others issues i see. Had a weird issue last week where my MCU displayed 59% battery charge but the IC displayed the correct 70%. Today I was driving down the road and Center screen froze, lost bluetooth and LTE and temp reading on the IC, map tiles not drawing and then the whole MCU just froze and then rebooted itself! Drove to my destination and then to a supercharger and the battery level once again didn't show what was expected on the MCU screen but was correct on the IC. Mine hasnt failed yet but really seems like its on it's last legs.
Thanks to everyone who posted and especially @EV-Fixme for putting together a comprehensive 1st post so I knew what to look for.
2016 90D
51,200 miles
This is the 2nd appointment in 2 months for signs of eMMC failing. 1st time mobile tech came out and check things and said everything was fine but he setup my car to be monitored more closely or flagged of some sort and to report any others issues i see. Had a weird issue last week where my MCU displayed 59% battery charge but the IC displayed the correct 70%. Today I was driving down the road and Center screen froze, lost bluetooth and LTE and temp reading on the IC, map tiles not drawing and then the whole MCU just froze and then rebooted itself! Drove to my destination and then to a supercharger and the battery level once again didn't show what was expected on the MCU screen but was correct on the IC. Mine hasnt failed yet but really seems like its on it's last legs.
Thanks to everyone who posted and especially @EV-Fixme for putting together a comprehensive 1st post so I knew what to look for.
2016 90D
51,200 miles
No CO2
Member
My apologies if this has been answered already in this thread. I didn't have time for all 59 pages.
I've learned from my Service Center that the previous owners were vigilant with maintenance and repairs, and told me that the full MCU assembly was replaced in December 2017, and the screen replaced in June 2018, on a August 2013 build car.
Is there a way to know if the eMMC was upgraded? If so, how?
Thanks
I've learned from my Service Center that the previous owners were vigilant with maintenance and repairs, and told me that the full MCU assembly was replaced in December 2017, and the screen replaced in June 2018, on a August 2013 build car.
Is there a way to know if the eMMC was upgraded? If so, how?
Thanks
BrownOuttaSpec
Active Member
No your eMMC isnt upgraded. The upgraded bigger chip in the Tegra Daughter board and MCU2 upgrade didnt exist in 2017. You might have a updated MCU that has LTE connectivity vs the original 3G but you still have a 'quick dying' eMMC chip of MCU1.
You have a "new emmc" chip if full mcu1 was replaced in 2017 which was the same chip that was used in the past with 2-8 year life expectancy. Sounds like 2018 may have been screen replacement for yellowing, and the 2018 may also yellow again.
This is really odd, sounds like your mcu and IC are out of sync on software versions. Is your car throwing any errors? You do have many of the classic signs. We are starting to discover some more of the "strange" issues that happen, and I'll be updating soon. Please let us you know your final outcome. Thanks!
Hi Tony, EV-Fixme.
After I put the upgraded eMMC back into MCU everything worked. Thank a lot.
But now I see an issue with dashboard cover not going fully back into their original places.
it's loose especially right above MCU. Any gentle on top of the cover make it move a bit.
How do u guys fix this issue?
After I put the upgraded eMMC back into MCU everything worked. Thank a lot.
But now I see an issue with dashboard cover not going fully back into their original places.
it's loose especially right above MCU. Any gentle on top of the cover make it move a bit.
How do u guys fix this issue?
dark cloud
Active Member
Make sure it is in the right position with the clips lined up properly, and then just like removing the trim under the steering wheel, forcefully rap it down with a manly closed fist. If it has been off several times or forced out of position you may need new clips.
Correct, make sure all the clips are aligned, some need to be gently helped into place with a tool pushing on the clip on the bottom side, I use the plastic pry tools. Also some many of the older dash dont have the extra clips above the mcu like the newer cars, a few just have not been as tight as before and would be fixed up upgrading to the new dashpad with more clips and the new mcu bezel to accept the cilps.
bfukumoto
Member
Just had my MCU daughter board replaced on my 2013 P85+ for $335.50 ($120.80 part + $214.50 labor) as I had MCU_w007 error due to NAV maps not loading on 19-Sep after v10.2 (2020.36.3.1.58d6902aeb93) was pushed OTA. My car has only 53,544 miles. I have no 3rd party software but do have a USB drive for MP4 music. SC informed me yesterday that after daughter board was replaced, the firmware was not passing successfully so they had to reach out out to Tesla Engineering support team for assistance. Then, received text this morning indicating car was ready for pick-up. Hopefully, the MCU is working properly with no loss of features. Hopefully, new eMMC on daughter board is write-intensive NAND and that it has been over-provisioned now that capacity is 64GB. Daughter board part number is MSX MCU TEGRA VCM REV-A-PROVISION (64GB) (2728212-S0-A). NOTE: I had my WAN radio updated from 3G to LTE in August 2017 which at the time cost $508.01.
HenryT
Active Member
I was told it would be somewhere around £400 for the LTE upgrade - evidently the price is the same regardless of whether they do it with the eMMC switch or as a separate job. How much they should charge is another matter.
Knightowl
Whovian
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