NefMoto

Hi everybody, I hope someone can help me. 

For the past several months I have been trying several ways to turn the IMMo off on my S4 8E0 910 560 ECU.  With no success.  The best I can seem to do is have the IMMO status set at "0" on VCDS adaptation channel.  My car will still shut off after a brief start.  I believe I need the IMMO status to be "1" on this adaptation channel.

Note, I have given up trying to do this with a bench harness, and have elected to desolder the EEprom and read it using a chip burner.  I can now easily read the EEprom and burn a file back to it seems to work as well :) took me months to get to this point.

Now that I can read and write to be desoldered chip, Here's what I really need help with:
1) Turn the IMMO off in the attached BIN file (this is my original dump read from chip burner)
2) Confirm checksums are correct after IMMO is coded "off"
3) Confirm what else needs to be done in order to defeat the IMMO, I have heard that the ECU Flash file also needs to be tweaked to show the IMMO is off?

This is frustrating me and I appreciate all help., note that the engine is not installed in an Audi, I have it installed in my Porsche Boxster, its the S4 4.2l.

V8Boxster

The read is corrupt. partial read and a row off starting address

Darn, ok, I will try another dump again this evenning and post it.

Hi nameless,  how does this dump look?  It's from a second ECU I have.  Are you able to sett IMMO to off for me?  Again, I appreciate your help.

Bad read.

oh man....I am ready to give up LOL.  I may take a shot at downloading a immo off bin from this site, write it to my chip, and see what happens.

You're reading it wrong and obviously will write it back wrong. Second attempt is twice the size and off by one byte so if you're using chip burner either you've chosen wrong chip from the list or burner/its software is crap.
Attached file might work if you write it back correctly  ::)

So like any reason you gave up with OBD/bootmode read? Why?

Thanks MDZ, I'll give it a shot

MDZ, I burnt it onto my chip and checked it against your file before soldering it back on.  The burn was good, but still immobilizer status shows as "0" on VCDS adaptation channel 91.  Do you think the VIN not being on the EEprom BIN would cause this?

Another question I have is...  is it possible to defeat the IMMO by just changing EEPROM contents, or will a person have to edit something in the Flash as well?

Actually I never paid any attention on what VCDS shows after disabling immo on ME7 ecus as I never had any issues, worked every time. The file I posted is your second read correctly sized, content shifted by one byte by adding 30 at the beginning and immobiliser disabled. Eepromtool also shows everything is fine with it.
Have you actually tried starting the car with it?

MDZ, I just plugged it into the car tonight and no change, it just starts for a second, then stops.  I know I'm running oit of favors, but do you have any other ideas?

Your programmer is not reading / writing the eeprom correctly, that is blatantly obvious by the previous bad reads that where posted. If you are located in the usa Pm me and I can set you up with a working eeprom for free, just pay shipping.

Nameless, I am in Canada.  Im going to try using eeprom tool again so hopefully I can get this thing into boot mode.  If I am successful,  there are a few immo off bins on this site I can try.   If this all fails, would you ship a new Eeprom to Canada?

Hi guys,

So here's  a new one.... I have tried to read the EEProm from an ECU with the 95160 chip.  I understand that this is a different duck and is 2KB in size vs the 1KB typically found.  Is anybody able to read my dump (attached) and let me know if its ok, and if you can provide an IMMO off bin for me to burn onto the chip.

Thank you

Here you go

Thank you very much Nameless, Ill burn it on the chip and give it a whirl this weekend. :)