vince59 wrote:...should I try to read the original eeprom as 25080?...maybe using EZP2019 as well?

As above said, try reading as 25C80 or even try with another programmer
When you have full read we can make your new file for your 95080 chip

wbr

..It is now a matter of principle to try to screw this damned chip. :twisted: :twisted: :evil:
I made a new dump with colibrì software, the only programmer software that shows ST 95P80 within its list.
It works with CH341 and the dump is enclosed.
I tested flashing as follows:
- colibrì/CH341: 5P08C3 as 95P08 --> mismatch when verifying
- TL866II plus 5P08C3 as 95080 -->ERROR
- TL866 5P08C3 as 95040 ok
- TL866 95080 ok
I will report results on ECU

Shooting wrote:

vince59 wrote:...should I try to read the original eeprom as 25080?...maybe using EZP2019 as well?

As above said, try reading as 25C80 or even try with another programmer
When you have full read we can make your new file for your 95080 chip

wbr

I will.
Here is the dump I forgot previuous post

BINGO!
Problem solved. Read with colibrì and ch431 then flashed with tl866 on 5P08C3 as 95080 did the job. Flashed on 95080 did NOT work as warning light was still on. Hope it helps someone else.

...one mistake in previuos post....flash 5P08C3 as 95040.
So just for clarification:
- read original 5P08C3 as 95P08 with colibrì and CH431;
- flash the original dump into donor 5P08C3 with TL866II as 95040.
This worked for me. No more red engine warning light.
Next to solve recover the bricked 29f400 :evil: :twisted:

@ Shooting: your fixed file was correct. The issue was still present because some bits were different due to mismatch in the dump when reading the 5P08C3 as 95040 with TL866.

vince59 wrote:...one mistake in previuos post....flash 5P08C3 as 95040.
So just for clarification:
- read original 5P08C3 as 95P08 with colibrì and CH431;
- flash the original dump into donor 5P08C3 with TL866II as 95040.
This worked for me. No more red engine warning light.
Next to solve recover the bricked 29f400 :evil: :twisted:

@ Shooting: your fixed file was correct. The issue was still present because some bits were different due to mismatch in the dump when reading the 5P08C3 as 95040 with TL866.

Told you, you needed a good read :D .. so glad it worked :D

wbr

Shooting wrote:Told you, you needed a good read :D .. so glad it worked :D

wbr

Thank you and the others for the given help!
Just one question for my knowledge. After solving the issue I still have another ECU left (the one waiting for 29f400 fix) and I am playing with another 5P08C3 eeprom. I am testing reading/writing the eeprom with the programmer I have and I wonder why I often get a slightly different reading. I mean, I flash the file and the reading gives me three bits with different value. Is this a hw problem or what?

vince59 wrote:

Shooting wrote:Told you, you needed a good read :D .. so glad it worked :D

wbr

Thank you and the others for the given help!
Just one question for my knowledge. After solving the issue I still have another ECU left (the one waiting for 29f400 fix) and I am playing with another 5P08C3 eeprom. I am testing reading/writing the eeprom with the programmer I have and I wonder why I often get a slightly different reading. I mean, I flash the file and the reading gives me three bits with different value. Is this a hw problem or what?

It's to do with the speed of the chip, it reads with a delay at 00h so it's usually one byte out.
And since it loops it reads the final bit as 00h, confusing but normal.

wbr

Good, to see if they can help me now with a problem in eeprom I think ...
It is a Hyundai Matrix and the eeprom is also 95p08c3. Read as is with VVDI prog that supports it.
The problem is that the car starts perfectly but after a while the error p0601 appears and stays in limp mode. The error p0601 is from chk but the flash is original ... to see if the error can be in the eeprom then?

One of often case for error p0601 is died capacitors in Vcc lines, with result of fluctuation in power voltages and errors in data exchange between chips. Or faulty voltage regulator.