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CAS3 0L01Y MSD80 ->81 cas3 has short ISN for dme, need help
14-12-2022, 16:25 PM, (This post was last modified: 14-12-2022, 16:47 PM by MarioIL.)
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MarioIL Offline
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XZBMW  CAS3 0L01Y MSD80 ->81 cas3 has short ISN for dme, need help
I got 2007 BMW 335 with MSD80 that is bad, replaced it with MSD81

Read 32bit ISN from MSD81
wrote that to CAS3 with ACDP 
Car throwing 2F49
After a while I realized CAS shows only 4bit ISN for DME


Can anyone help with this ? or any idea on best resolution ?


Attached
MSD81 eeprom, p/d-flash
CAS3 back up - original file
CAS3 Modify - file I wrote with 32bit entered nospeak


Attached Files
text_0.txt
File Type: .txt
Downloaded: 13 times
Size: 75 bytes

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14-12-2022, 19:44 PM,
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BMWzone Offline
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RE: CAS3 0L01Y MSD80 ->81 cas3 has short ISN for dme, need help
Short ISN it’s EWS3, 32 bit it’s EWS4, need conversion CAS, you have CAS3 with 0L01Y, I think need CAS3 with 0L15Y, I’m pretty sure that exist CAS3 0L15Y EWS3 and 4, but no exist CAS3 0L01Y with EWS4
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14-12-2022, 21:30 PM,
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Matthew53 Offline
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RE: CAS3 0L01Y MSD80 ->81 cas3 has short ISN for dme, need help
Here you have dumps to CAS3 0L01Y with 32bit ISN. ISN is provided in a file, so just decrypt eeprom with provided ISN, change ISN on the one from MSD81 and it should be all good.

61.35-6943831-01.rar
File Type: .rar
Downloaded: 17 times
Size: 131.8 KB

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14-12-2022, 22:15 PM,
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MarioIL Offline
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RE: CAS3 0L01Y MSD80 ->81 cas3 has short ISN for dme, need help
thank you will see what i can work out
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