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Author Topic: DEAD ME7.5  (Read 3086 times)
OberlandRacing
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« on: October 26, 2021, 06:22:19 AM »

I have a spare ECU at the moment here. (4B0906018AL)
The ECU sends no Response. (Thats not the ECU i postet last Year) My own ECU runs great.
In Bootmode its also not Stable. Sometimes it crashes after i try to connect.
i´ve checked EEPROM and Flash. EEProm is fine also CS. But the File what i got from the ECU is Special, never saw something like this.
checked the File with me7sum:
 
Quote
Step #1: Reading ROM info ..
 Searching for EPK signature...missing
 Searching for ECUID table...0 matches, missing
Step #1: ERROR! Skipping ROM info.. UNDEFINED

Step #2: Reading ROMSYS ..
 Startup section: word[0x008000]+word[0x00FFFE]
 @08038 Add=0x00006FE7 CalcAdd=0x00106FD7 ** NOT OK **
 ERROR: INVALID ADDR 0x91b53c

Step #3: Reading RSA signatures ..
 Searching for RSA offset #0...missing
 Searching for RSA offset #1...missing

Step #4: Finding CRC table(s) ..
 Searching for CRC table(s)...missing
 Searching for CRC table(s) using fallback...UNDEFINED
Step #4: ERROR! Couldn't find CRC table(s)

Step #5: Reading Main Data Checksums ..
 Searching for main data CRC pre block...missing
 Searching for main data CRC/csum blocks...missing
 Falling back to default 512k CRC blocks...OK
 Searching for main data CRC offsets...missing
 Searching for main data checksum offsets...missing
Step #5: ERROR! Skipping Main Data checksums ... UNDEFINED

Step #6: ROMSYS Program Pages
 Program pages: 8k page first+last in 0x0000-0xFFFF and 0x20000-0x7FFFF
 @00803c Add=0x3673C7 CalcAdd=0x367057 ** NOT OK **

Step #7: Reading Main Program Checksums ..
 Searching for main program checksum..FAIL
Step #7: ERROR! Skipping Main Program Checksums.. UNDEFINED

Step #8: Reading Multipoint Checksum Blocks ..
 Searching for multipoint block descriptor #1...missing
 Searching for multipoint block descriptor #2...FAIL
Step #8: ERROR! Skipping Multipoint Checksum Block... UNDEFINED

Step #9: Looking for rechecks ..

*** Found 2 checksums in D:

*** ABORTING! 5 uncorrectable error(s)
Also when i try to flash it in Bootmode with a stock File it crashes..
Maybe someone has a Idea..
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Audi S4 B5 2.7 AGB FL
Audi A4 B5 1.8T ANB FL
gremlin
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« Reply #1 on: October 26, 2021, 05:00:18 PM »

Maybe someone has a Idea..

Your file is bad and shows that ecu has problems on internal databus line DQ12.

Possible reasons of trouble:
1. Line on pcboard beetween CPU pin 114 and flash chip pin 25 is broken (lost or shorten to something)
2. Flash is bad (data line DQ12 not work)
3. CPU port pin 114 has burnt or broken inside chip
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aef
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« Reply #2 on: October 27, 2021, 01:46:55 AM »

out of interest which tools created this log?
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OberlandRacing
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« Reply #3 on: October 27, 2021, 07:13:49 AM »

out of interest which tools created this log?


Like i wrote, i always check my Files with ME7Sum, thats the normal procedure if you check it.
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Audi S4 B5 2.7 AGB FL
Audi A4 B5 1.8T ANB FL
OberlandRacing
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« Reply #4 on: November 04, 2021, 04:26:36 AM »

Your file is bad and shows that ecu has problems on internal databus line DQ12.

Possible reasons of trouble:
1. Line on pcboard beetween CPU pin 114 and flash chip pin 25 is broken (lost or shorten to something)
2. Flash is bad (data line DQ12 not work)
3. CPU port pin 114 has burnt or broken inside chip


Do you have some measurements for the CPU Pin 114? (Ohm`s)
It could be possible that someone tried to get in to Bootmode and Shortet Pin 24&25.
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Audi S4 B5 2.7 AGB FL
Audi A4 B5 1.8T ANB FL
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