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BMW 3-Series (E90 E92) Forum
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I cloned my MSV70 DME
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06-26-2018, 04:56 PM | #1915 | |||||
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On the transmissions the program is compressed, so it's not possible to disassemble and hack the code like we did for the other DMEs, which is why they do it that way. With the ZF, we don't need to bypass the RSA signature check since the signature is valid anyway. Quote:
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Last edited by hassmaschine; 06-26-2018 at 05:19 PM.. |
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06-26-2018, 06:14 PM | #1916 |
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So the 4-cylinder models seem to use the MSD81.2 rather than the MSD80/81 like their 6-cylinder cousins. Undoubtedly the code is very similar, but without seeing a full dump, it's hard to say one way or another whether we can support it for sure.
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06-26-2018, 06:27 PM | #1917 |
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Wow, thank you for the fast answer!
I can check the ZUSB next week. I can also provide a dump of the ECU. With the BB app it should be easy. All ZF have 512 bit? So we can modify the 0da, sign it and flash it without the need of xHP? In conclusion: ECU‘s with 512 bit can be signed and flashed ECU‘s with 1024 bit (or more) can‘t be signed because the key is unknown. You have a bypass for the 0pa file. That deactivates the „check“ in the 0da file. -> RSA delete Is that right? |
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06-26-2018, 07:07 PM | #1920 |
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He's partially correct, early 6 speed ZF transmissions use 512. Second generation and newer use 1024.
Bimmerlabs handles the first generation very well. |
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06-26-2018, 09:33 PM | #1922 | |
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1024-bit is still out of the realm of possibility outside of the NSA, though I suspect in the next decade or so we'll have consumer-grade hardware capable of factoring those keys. 2048-bit and higher, and you'll probably be waiting for quantum computers. |
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07-04-2018, 05:29 AM | #1923 | |
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6MT. I perceive the throttle to have a delay when first applied. Could this be the throttle curve you mentioned? Have you tested your tune on other cars? Did you raise the rev limit slightly? (can't recall if it was yourself or someone else testing this) |
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07-04-2018, 09:44 AM | #1924 |
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I can raise the rev limit but all of the free files have stock limiters (since they are based on stock tunes).
It's been so long since I've driven my car with a stock tune, it might be other changes (there's also a throttle position map). One of these days I'm going to reinstall my MAF and flash the stock tune to remember what it was like (well, I sort of remember - I thought it felt neutered). |
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07-04-2018, 02:04 PM | #1925 | |
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I'm going to have some time to install my 3IM so I hope to get the modded tune put onto my 328xi Last edited by Pinscher; 07-04-2018 at 03:51 PM.. |
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07-16-2018, 10:59 AM | #1926 | |
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hass - just finished installing the 3IM, and was checking bimmerlabs for updates and the link to the USB / OBD tool - only to discover the site is down. you are probably aware, but if not - heads up.
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07-19-2018, 03:25 PM | #1928 |
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thanks - got the files.
2 questions: is it worth getting the 0Pd data file from my car before flashing the RSA Delete / 330 firmware? and, any progress to report on the web based tuning system you mentioned? still interested in looking at tables and all that fun stuff. glad to be a low functioning beta if you need one. |
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07-19-2018, 06:10 PM | #1930 | |
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I don't have the web based stuff available yet - there's always 10,000 other things that need attention first. |
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07-20-2018, 02:56 PM | #1931 |
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sorry, should have phrased my questions more clearly.
i've seen 4 stock MSV80 files for my car / project on bimmerlabs. just wondering if i should archive my own stock file in case I need to flash it back for some reason? |
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07-20-2018, 09:30 PM | #1933 |
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Only reason to backup would be if you already have some kind of tune I guess. That said, we don't currently give you a means by which you can backup the DME. That might change in the intermediate future
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07-21-2018, 10:39 AM | #1934 | |
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Here are some additional information: 116i E87 N43B20 MSD81.2 ZB number: 8688008 Program: 8672567A.0pa Data: S8688009.0da SW: 0044RD0QID0S Power class: 01 (N43B20K0 according to NCSdummy) I THINK these are the files for the 118i: ZB number: 8688004 Program: 8672567.0pa Data: S8688005.0da Power class: 00 (N43B20U0 according to NCSdummy) I tried to find the power class byte, but without an xdf, damos, ... I had no luck. Maybe the description in NCSdummy is not correct. Would you have a look at these files? Can I PM you the original file? |
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07-21-2018, 11:45 AM | #1935 |
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I haven't added support for MSD81.2 yet which is why you can't select it - but if you can PM me with your email, and send me the full dump, I can probably add it.
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07-21-2018, 05:21 PM | #1936 |
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I flashed the MAF delete tune and thought I'd share this picture comparing the European IAT sensor to the NA MAF sensor:
I'll post more about the tune after more seat time. |
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