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Author Topic: Protecting read out via OBD  (Read 22642 times)
phila_dot
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« Reply #15 on: October 21, 2011, 05:32:21 PM »

No, josh is wrong. Only read is protected.

Write is fine. I never block off writing on my files.

I don't have any need for this, but that would be a deal breaker for me.
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Gonzo
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« Reply #16 on: October 21, 2011, 06:45:53 PM »

What do you mean? You want write blocked out too? Why?

Im not some jerk that locks up your ECU for fun. If you want to ovewrite my tune with something else I let people do it Smiley

This is what every company out there does BTW.
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phila_dot
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« Reply #17 on: October 21, 2011, 07:09:25 PM »

No, not being able to write would make it worthless to me.
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RaraK
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« Reply #18 on: October 21, 2011, 08:48:36 PM »

no, blocks read and write... u must write via bootmode.

Yea just read it block, i 2nd this, ive written over with kwp no problem.
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NOTORIOUS VR
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« Reply #19 on: October 21, 2011, 09:35:04 PM »

Not sure why NVR wants to do this though. Shouldn't all files be free?  Tongue Tongue

If someone wants my files bad enough there are still ways to get it... but why should I make it easy for them Smiley
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Gonzo
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« Reply #20 on: October 23, 2011, 10:28:15 AM »

Not sure why NVR wants to do this though. Shouldn't all files be free?  Tongue Tongue

If someone wants my files bad enough there are still ways to get it... but why should I make it easy for them Smiley
At least we share the same views on this aspect haha
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matchew
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« Reply #21 on: October 23, 2011, 10:48:06 AM »

I read out a file only yesterday that had this byte changed. Didn't stop the file being read from the ECU at all.
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Gonzo
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« Reply #22 on: October 24, 2011, 11:31:03 AM »

I read out a file only yesterday that had this byte changed. Didn't stop the file being read from the ECU at all.
There is more things you can change if you really want to block reading completely.
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NOTORIOUS VR
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« Reply #23 on: October 24, 2011, 12:28:31 PM »

^^ would you mind sharing?
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judeisnotobscure
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« Reply #24 on: October 24, 2011, 01:46:59 PM »

No, josh is wrong. Only read is protected.

Write is fine. I never block off writing on my files.
I was wrong... just having issues with one car only.
I'm going to double check a few other things  Wink
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infinkc
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« Reply #25 on: October 24, 2011, 06:02:28 PM »

ecufix only changes this one byte also to protect the reading, doesnt affect writing to the ecu again.  yea it still can be read out if you know what you are doing. and also do not checksum after you change this byte. Yes you will get checksum errors if you try and verify the bin.
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Gonzo
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« Reply #26 on: October 25, 2011, 06:48:15 PM »

ecufix only changes this one byte also to protect the reading, doesnt affect writing to the ecu again.  yea it still can be read out if you know what you are doing. and also do not checksum after you change this byte. Yes you will get checksum errors if you try and verify the bin.
Sounds like your WinOLS has the checksum bug  Grin
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pedrogbranco
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« Reply #27 on: November 18, 2015, 06:34:49 AM »

what about scrambled files. files that even if you read you at least cannot interpret the contents without a key
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nyet
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« Reply #28 on: November 18, 2015, 10:38:43 AM »

what about scrambled files. files that even if you read you at least cannot interpret the contents without a key

Waste of time.
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roman_tyk
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« Reply #29 on: December 23, 2015, 09:33:59 AM »

Has anybody checked what is under such modification from a2l and funktionsramen??

0F=> 00


Seg0x202@808000:8B06             ; ---------------------------------------------------------------------------
Seg0x202@808000:8B06 00 09                       add     r0, r9          ; Integer Addition
Seg0x202@808000:8B08 0A 0B 0C 0F              bfldl   word_FD16, #0Ch, #0Fh ; Bit Field Low Byte
Seg0x202@808000:8B0C 0D 0E                       jmpr    cc_UC, word_808B28+2 ; Relative Conditional Jump
Seg0x202@808000:8B0C             ; ---------------------------------------------------------------------------
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