NefMoto

Hi,

tried to write some ESKONF changes today to a mk4 which i read before with mpps without problems.
I wasnt able to write it with mpps in the car, i wasnt able to write it with eu galletto v53 and i wasnt able to write it with nef.

I used my original vcds in dumb mode because i have no cheap one with ftdi at the moment.
layout should be one of the 800s i thing because its wideband ecu with 1mb file. i tried all.
I could only connect with the dash fuse in it.
It stopped writing with "Erase flash memory routine did not start or complete correctly."

I will remove the ecu the other day and try it without boot on the bench at first.

Should it work with genuine vcds in dump mode?
I have no experience with nefmoto because i use mpps from the start.

I had the same problem with a 032hs ecu 2 days ago. Was able to read the orig with mpps but unable to write back with mpps, nefmoto, or kess v2. I ended up pulling the ecu and bootmode.

Marty is right. Bootmode should do the trick.

My car is an HS and I used to have all sorts of issues with flashing back. It was really luck of the draw through OBD. However bootmode never failed to work.

I think it was my cluster getting in the way of comms... Wired a bypass and I haven't had any issues since. Then again I don't flash too much, got my tune where I want it for the most part.

I've had this happen, even have the car not start after reading ecu. I found unplugging ecu and plugging back in worked. I've had bootmode also not flash. I found out powering pin 121 i believe. That did the trick

MTM Label on the outside. I sorted the "problem" by removing the boards.

Is this a grautec board?

EVC KEY encryption board by the looks of it.

that is VERY interesting the atmel isnt covered in goo with the chip numbers scraped off. i dont think ive ever seen that before.

I dont understand why it allowed me to read the file? This think is useless as copyprotection...

same story: http://nefariousmotorsports.com/forum/index.php?;topic=1309.0

http://nefariousmotorsports.com/forum/index.php?topic=3102.msg72195#msg72195

it is very useless.

all Mtm tune use this board
and all only work read but write not

my ecu not mtm,  www.sportec.ch but same read working write not

Because the write enable pin isn't connected on most of those pin swap boards?

Again a MTM device, this time its 018AP TT 8N

- Same board in it but i could read it with mpps
- VCDS showed 16985 Memory Check Sum Error
- couldnt write
- file had one crc error
- login code changed
- cw_noromchkreset changed <-- What is this for?
- cw low octan fuel (first time i saw this)

CNOKT all tuned prog use
cw_noromchkreset  disable epc check routine startup

epc check Routine ?

I wrote a file back to this ECU without the scrambler board and the 16985 error is still there.
What is mtm doing with the eprom?

not mtm not modification eeprom
maybe  fash defective try other 29f800 ???

EPC electronic pedal control startap check Routine diasbled this map

I reflashed a original file on the bench and the 16985 Memory Check Sum Error was still present.
I flashed the basefile for the tune and put the ecu back in the car. In the car the 16985 Memory Check Sum Error was gone.

 ???