NefMoto

I mean can i open ecu box, then connect it to the harness and somehow ground the appropriate pin and start the flash procedure in boot mode via obd?

I use galetto 1260 (http://www.ebay.co.uk/itm/ws/eBayISAPI.dll?ViewItem&item=270705847225). My ECU is bosch ME7.5 0261 208 521.

Please attach some pictures of the right pin to ground if this procedure is possible.

Yes you can. You can open up the ECU so you can see the circuit board, but still leave it connected to the two ECU harness connectors.

To get the ECU into boot mode, you have to have the boot pin grounded when the ECU powers up. The ECU is powered by the connection to the car battery, not by the ignition switch.

To get the ECU into boot mode in the car, this process should work:
0) Plug your Galletto cable into the OBD port and get Galletto software ready.
1) Disconnect the battery
2) Insert the key, and turn on the ignition
3) Connect the ECU boot pin to ground
4) Connect the battery
5) Disconnect the ECU boot pin from ground
6) Tell Galletto to connect

@Tony:

Thank you i ll try it tomorrow morning and i ll inform with the results.

Just to be sure those two things:
-The ECU cant be harmed this way right?
-Can i have a picture of the correct pin to ground? Have seen how its done before but right now i dont feel too comfortable with what i remember.

Well that didnt work.

I do the procedure as written even with some variations, p.e. i remove the ground after pressing download to eobd1260 program and/or i remove instruments 10A fuse, but cant pass writing initialization to seed key, erasing and finally to writing.

Could be that i dont use resistor, cause i only have a 10.1MΩ at home now, i just ground the pin to the car chassis?

Also my battery after measurement with multimeter shows 11.96V.

My ECU is 7.5 so i use this pin:
(http://youyoukiller.free.fr/boot_mode/ME7.5-0261206436.jpg)

Also tried this one but no success:
(http://i795.photobucket.com/albums/yy231/k0mpresd/alt_bootpin.jpg)


Any clues and help would be more than welcome!

Thanks.
 

Get the ecu out of the car, and do it on the workbench !

Power is good. But more than 12v is recommended.

I always succeeded with this, on the bench with ME7.x'es and Galletto 1260.

Cheers,

PvL

Well i give up, i ve done everything i could.

I ll get it to workbench to make it work, hopefully.

Did you try connecting with the NefMoto software in boot mode? The NefMoto software doesn't support any operations in boot mode yet, but it can tell you if it could connect.

It looks like you are using the correct boot pin.

Yes i tried to connect in boot mode with nefmoto flasher tool but it couldnt establish connection.

If i remember corect, 3 sets of 4 tries couldnt send a package or something like this.

Updates:

ECU was tested on bench.
We couldnt make it response with galletto, minimon, VAg7flasher, nefmoto tools.
Isnt weird? Refuse to work after a typical flashing? ground without resistor "grounded" it?

The problem is that i didnt have EEPROM backup and now no immo code and another 032DR ECU cant start the car's engine.

So now what can i do? Can it be the 29F800BB 8Mbit (1MB) memory? Should i change it with a new one?

Boot mode on the bench should work.

What wires have you connected to the ECU?
What is your process for trying to start boot mode?

Well the procedure i followed is right cause the same procedure worked on the other ECU unit i possess with # 032 DR.
The 032RP did not respond in any way so boot mode was not possible.

So boot mode worked for one ECU and not the other?

If that is the case, I would have to assume some electrical component on the ECU is dead.

Correct.

Now can you help me recognize an appropriate ECU for replacement?
What part numbers should i buy for replace it?

i have bricked an ecu trying to read flash with nefmoto...  i could even connect to it in boot mode with galletto and flashed a stock file to it and it still wouldnt connect in normal mode let alone start the car anymore.

im guessing something else got corrupt other than the flash chip.

Its true that i can use any compatible* ecu to replace mine with the following procedure:

-Flashing ECU with the bosch sw: 0261208521 (from 032RP ecu).
-Flashing the correct working 032rp file
-Flashing eeprom with immo or immo defeated

and after the ecu will work fine.

Is it possible from your experience?

* ecu from 1.8T which is drived be wire, wideband lambda, FWD with transverse engine as mine.

You might want to stay in a tighter box than that.  I think there are two boot ROM versions out there for the 1.8T DBW's and files from one version will not boot/run on the other's hardware.

Hm that make sense although i dont like it.
Thank you.

Update after playing with poly-meter.

The red circled pin resistor does not have power, the other pin of the same resistor has. I stay at this one cause is the closest to the supply.
Probably a burnt resistor?

(http://img820.imageshack.us/img820/2382/ecuresistorfail.jpg) (http://imageshack.us/photo/my-images/820/ecuresistorfail.jpg/)

Uploaded with ImageShack.us (http://imageshack.us)

UP and looking for such a specific answer  ;D

You might want to have a chat with "Nottingham"...  you both share the same ecu...  His one is still working.
Same probs with bootmode and crap. Smashed his galletto to pieces, putted ecu back, and it works...

This is one stuborn ecu...

As he has the same ecu, he might be able to provide you vital info.

http://nefariousmotorsports.com/forum/index.php?topic=1586.msg15211#msg15211

pvl your suggestions are appreciated  :)

Can not edit the above post..


Please anyone with me7.5 have a look at it and reply when possible.

Some measurements of the resistor (130 Ohm):

Voltage (DC) between the left side of this resistor and ground:

left side of resistor ->  2.5V  right side (the circled one) -> 0V

The resistance between ground and the right side of the resistor:

left side of resistor -> 4.97k Ohm  right side (the circled one) -> 0 Ohm 

Resistance between the left and right side of this resistor:

4.97K Ohm

Good news!

I bought an 032QN ECU from ibiza fr 1.8T 20V mk4. With the help of member Nottingham (http://nefariousmotorsports.com/forum/index.php?action=profile;u=1098), thank you  ;D , immo was defeated and car after flashing is running like a charm.

Airbag's light is on but i guess has nothing to do with the ECU.

No i ll focus on reviving the old ecu or at least learn from my mistakes.

Maybe it can be helpful, attached the boot info for ME7.5's.

Thanks for the effort, boot pin was shown on page 1 (not now for some unknown reason).

Ha ve you managed to use boot mode incar? My only option is always to use friend's flasher (can't remember the product name, but it is italian if i'm not mistaken). My ME7.5 doesn't want to go into boot mode the easy way... For example in tutorial you have to ground pin 24 for 3 seconds, but in my case if I hold it for 3 sec and then release it it, no tools can connect to it via boot mode (boot mode is simply inactive), only through kwp2000. So what I have found out (by using multimeter and mentioned earlier flasher) is  this: you have to be very precise when you're holding pin24 to the ground. In my case it is about half of a second before any tool tries to connect via boot mode and then quickly release it, otherwise ECU won't allow to upload bootloader. But even then software hangs up at a later point (for example nefmoto -> determining of boud rate). Any ideas what to do to make it incar possible? Has anyone succeded in this on me7.5??

my in car solution (ME7.1 though)

switch is a momentary

(https://lh3.googleusercontent.com/-4VU6IKpG5TQ/UTJK0o3klvI/AAAAAAAAII8/HbmnVU0M5SQ/s945/IMG_20130302_105253.jpg)

(https://lh4.googleusercontent.com/-e76lsAvo4eQ/UTJK0sVlwyI/AAAAAAAAII4/M_iIRm5I7dY/s709/IMG_20130302_105209.jpg)

nyet i have done the same, only i dont use a switch  :)

you can do it in car i have done this before, just ground pin 24 to negative battery post

Do you have a close up of both points on the board as I may need to do this one day

http://www.nefariousmotorsports.com/wiki/index.php/ECU_Boot_Mode

For the record, I think this is a terrible idea unless you're an experienced solderer. It's easy to overheat those pads and cause them to delaminate, or use too stiff of a wire and have them pull up just trying to maneuver things into place.

Is it a bad idea to solder a wire ( or alligator clip ) to the ground pin and leave it hooked up just not grounded when not trying to enter boot mode ?

I've fixed a few ecu's people soldered to the bootpin. The wires more rigid and ends up lifting the pad. If you do it, make sure NOT to bend it near the ecu, and make sure the wire is SUPER thin and very flexible.

just boot button from ECU to the cockpit and k-line from ECU direct to OBD connector. And boot mode on car no problem
https://www.youtube.com/watch?v=ptuaHsAZ8_Q&list=UU28fsT0cnCwIcJkrV4B2R7g

I had to do this 2 days ago on the road. lol. ;D. I'm new this self-tuning world so I've been flashing different files for comparison (just completed my Stg3 build recently). Yes, I checksummed the file, BUT I accidentally flashed the pre-checksum file and just realized right after NefMoto completed the flash reporting "Wrote 18 of 19 sectors". WHOOPS.  :-[.

Lucky I brought my custom harness and MPPS cable with me (had a feeling that this might happen). Tapped 12V (+) to my power inverter, and tapped ground to my buddy's deck removal tool that happen to be sitting on my deck for a while, haha.

It was pretty intense at first since I was by myself on a dark "DEAD END" road, but very satisfying once the ECU was recovered.




Oh, my name is RJ by the way. I've been lurking through this forum and wiki for awhile now, but I haven't really posted anything yet. I actually learned a lot from this forum. Thank You!!

After this "boot-mode-on-the-road" session I had, I've decided that it is time to start sharing in this forum :D. I've been wanting to share my logs here but I want to do my best based on the wiki first so I would understand better when you guys reply and criticize my am-mature tune. Lol.  Nice to meet you all.

Just so you know, if you realize you flashed the wrong file prior to cycling the key, just cancel or allow the operation to continue, reconnect, and flash again.

Noted!! Thanks ddillenger!!!

I was able to reflash my me7.5 with nefmoto software after my ecu was bricked. I had the computer on top of the car and a gust of wind came out of nowhere and blew my computer off disconnecting the cable and smashing into the ground. I thought the flash might have completed before the accident so I tried to start it and nothing happened. I later installed nefmoto onto a spare laptop and wasn't able to connect with the ecu, so I went through the process of starting the ecu in boot mode while still in the car and then tried using galletto with no success. I then tried using nefmoto for the hell of it while the ecu was in boot mode and it worked.

Would this work with Nefmoto flasher and FTDI?

Yesterday I flashed my ECU with Nefmoto flasher. Flash process was successful but the ECU is dead now. I can not connect to it.
I'm confused. I don't understand why this happened.  After, I have read the logs of nefmoto flasher and there is nothing suspicious in there.

I'm attaching the log of this particular flash. Maybe somebody can tell why this happened.

Thank you in advance,

Sounds like you flashed a bad file onto the ecu. Either the wrong file or one with incorrect checksums.  Bootmode time for both the flash memory and possibly the EEPROM as well.

Your boot mode pinning the wrong side bro and this is definitely not the picture i downloaded below. Hold up let me see if itll let me get the correct picture! Ok the one at the bottom hope you didnt fry anything.

vcp is very good at recovering non recoverable ecu's but you need an sgo or frf to do it

Not needed for ME7.1

This was a really good question, nobody answered directly.
Read all kinds but cant find if bootmode works in NefMoto, although I have read where I shopuid rely on it for nothing. So...
 Can you use NefMoto flasher in bootmode to recover the ecu flash?

http://nefariousmotorsports.com/forum/index.php?topic=12861.msg105960#msg105960

https://s4wiki.com/wiki/Tuning#Flashing_utilities

https://github.com/NefMoto/NefMotoOpenSource/issues/6

I soldered a Wire to pin 24 and ran it outside of box about 1ft long and the end has a Alligator clip.. I mess with my tunes so much I screw up sometimes and brick ecu and have to use Galletto