guille_masco
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« on: September 20, 2012, 04:53:06 AM »
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Hi to all, I have a little problem with a MED17.5.2 from a VAG 2.0TSI engine. The ecu is TP8, I read the file, did a .mod, wrote it, read again to see if the writing was good, and... The ecu still with the ORI file. Then I took a look, and the sector where all maps are, appears as a OTP sector. The strange thing is that some local tuners tune this car. Using CMD, or Kess, even APR tune this car-ecu. Im using X17. magpro people told me that I cannot write on an OTP sector. But then, how can people tune this car?? here is a screenshot that shows the OTP sector on 1C0000h  Ori is attached |
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« Last Edit: February 13, 2013, 11:21:10 AM by guille_masco »
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prj
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« Reply #1 on: September 20, 2012, 06:21:26 AM »
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I do not have any experience with MED17, but if what you say is correct and the maps are indeed in OTP memory, then a way to tune a such car would be to move the maps around by redirecting the map reads to an empty space in the flash and copying the needed maps there.
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« Last Edit: September 20, 2012, 06:42:49 AM by prj »
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guille_masco
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« Reply #2 on: September 20, 2012, 08:41:24 AM »
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i think the only way of doing that would be find all pointers in the software..
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k0mpresd
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« Reply #3 on: September 20, 2012, 08:44:23 AM »
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uh what? your screen shot shows edc17cp46. but then you say you have an MED file.
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prj
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« Reply #4 on: September 20, 2012, 09:15:29 AM »
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i think the only way of doing that would be find all pointers in the software..
Hardly all pointers, only those of the maps you want to tune I have done this plenty of times on older ECU's... But as I said - I don't know much about MEDC17, so maybe this approach is not needed at all here. |
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guille_masco
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« Reply #5 on: September 20, 2012, 09:22:37 AM »
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uh what? your screen shot shows edc17cp46. but then you say you have an MED file.
yes, sorry for that, i was trying differents protocols when i took the screenshot. but the ecu is a med17.5.2 tprot8 from a 2.0TSI |
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k0mpresd
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« Reply #6 on: September 22, 2012, 02:47:44 AM »
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any updates?
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msundercober
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« Reply #7 on: September 22, 2012, 02:28:20 PM »
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TP8 needs passwort read before. I do them with Byteshooter.
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k0mpresd
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« Reply #8 on: September 22, 2012, 03:41:32 PM »
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TP8 needs passwort read before. I do them with Byteshooter. obviously. his question is not about reading. his question is about writing the section of flash that is shown to be not writable. |
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guille_masco
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« Reply #10 on: September 24, 2012, 08:17:08 PM »
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Magpro people sent me a test firmware, I will report as soon as I have the car back.
Apart from this problem, people magpro is behaving very professionally, answering all my questions and developing very quickly.
TC in this ecu is 1767
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k0mpresd
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« Reply #11 on: September 24, 2012, 10:18:30 PM »
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Apart from this problem, people magpro is behaving very professionally, answering all my questions and developing very quickly. you must be dealing with a different magpro than the rest of us then.  |
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Gonzo
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« Reply #12 on: November 10, 2012, 02:40:55 PM »
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Are you using WinOLS for checksum?
Your flashing tool should be able to skip the OTP sector since the checksum will match. Unless you are flashing a different file from another ECU.
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guille_masco
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« Reply #13 on: November 10, 2012, 04:12:52 PM »
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I do not understand...
They sent me a test firmware, to try to write OTP sector. But I coudnt try it.
Im not correcting checksum with winols, Im hoping the tool to do it like it does always with others med17
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Rick
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« Reply #14 on: November 11, 2012, 09:57:59 AM »
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Why couldn't you try it? Don't have the ECU?
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