TonyT
Member
Again, why should I accept a used part for anything?
You can ask them for a MCU2, new MCU1 likely does not exist anymore.
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Again, why should I accept a used part for anything?
Read your warrantySo I’m clear.... I bought a brand new car with all new parts. One of the parts included a design flaw that caused a safety that was formally recalled. Regardless of if my 2017 P100D is new or not, it is under warranty. So what you are saying is I don’t deserve a new part but a used or remanufactured part?
You do know don't you, because we do, that you are being unreasonable about remanufactured parts?If new parts to fix my MCU1 are not available, why would that be my problem? Wouldn’t Tesla need to figure that out without providing me with used parts?
The way I look at it is, I bought a new car and while,under warranty if a part needs replacing, it’s should be a new part
But is it really the chip that went bad or is it the size of the chip? Could the old chip have worked fine is a Tesla hadn’t cooked it by useless OTA updates? If all the 8g chips were going to fail 100%, does that mean under the same system the 64g chip will fail too, only it will take longer?
You seem to be somewhat immune to information that contradicts your preconceived notions but here goes:But is it really the chip that went bad or is it the size of the chip? Could the old chip have worked fine is a Tesla hadn’t cooked it by useless OTA updates? If all the 8g chips were going to fail 100%, does that mean under the same system the 64g chip will fail too, only it will take longer?
- The original chips wore out from too many write cycles. As each block wears out, it is marked as a bad block. If you have too many bad blocks, the memory capacity is reduced to the point where you get flaky MCU problems. The original Tesla software wrote a lot of data to the memory as it was logging different activities.
Here. Please read this. I think it will answer your questions. MCU1 Flash Memory Analysis and Failures – TeslaTapBut is it really the chip that went bad or is it the size of the chip? Could the old chip have worked fine is a Tesla hadn’t cooked it by useless OTA updates? If all the 8g chips were going to fail 100%, does that mean under the same system the 64g chip will fail too, only it will take longer?
Indeed, I find it interesting that they replaced the chip by another one with a very high temperature rate (-40ºC - 105ºC).There is another failure mode: some of the 8GB eMMC chips are suffering from a controller failure and not blocks failing from excessive writes. (Though they would have eventually failed because of writes had the controller not failed first.)
Because the terms of the warranty say so?Again, why should I accept a used part for anything?
Indeed, I find it interesting that they replaced the chip by another one with a very high temperature rate (-40ºC - 105ºC).
are you implicitly suggesting that the more standard -40ºC - 85ºC can do fine? I would certainly expect so, this is no ICE car, and the residual heat is much less.Correct, however the controller issue was mostly on one specific hynix chip part number, I dont have handy currently. We are expecting the Micron chip to have a better controller and more write cycles to mitigate the issues.
are you implicitly suggesting that the more standard -40ºC - 85ºC can do fine? I would certainly expect so, this is no ICE car, and the residual heat is much less.
@TonyT, saved this in case it needed to be referenced again.
Preventive eMMC replacement on MCU1 Post #378
From my observations I've seen the Hynix H26M42001FMR in 2012 and 2013 cars. The H26M42002GMR in ~ 2014 cars and the H26M42003GMR in 2015+ cars.
Please be very careful when de-soldering the chip, especially the oldest chips (H26M42001FMR) seem to corrupt or even die completely from the heating.
There are ways to read the eMMC chip before de-soldering though. Especially when you have an old chip or if it is failing already I would recommend having this done to safeguard your unique certificate files. Without those unique files the car will not have app functionality, updates, Spotify etc. (and Tesla will not give you these files, they will only be able to offer a +- €3000 replacement of the entire MCU).
Hynix H26M42001FMR in 2012 and 2013 cars.
Hynix H26M42002GMR in ~ 2014 cars.
Hynix H26M42003GMR in 2015+ cars.