NefMoto

Got a stock file im trying to flash. It has only emissions deletes no tune.
I read stock bin and sent it to tuner. He did emission deletes.
He said the problem is that the original file had checksum errors.
But car starts fine with original file.
I get this error
(https://scontent-sjc3-1.xx.fbcdn.net/v/t1.6435-9/170554988_10157981190322671_4604622853914310336_n.jpg?_nc_cat=107&ccb=1-3&_nc_sid=730e14&_nc_ohc=O2t-Q2WlgCwAX8pNElf&_nc_ht=scontent-sjc3-1.xx&oh=0c7817ebdd6d9048de62734496ea82cf&oe=60981E5A)

Is it safe to proceed with the memory delete before writing the new file. I dont want to brick.

Also this is an audi tt 2001 225 Amu.   I thought it was stock.

1) you didn't post the error
2) you didn't post the output of me7sum
3) you didn't say what file you're trying to flash
4) you didn't mention what program you intend to use to flash
5) you didn't mention if you have a bench harness
5) you didn't mention if you are intending to use bootmode or not

Thanks for responding. I did post the error.  I posted a screenshot of it.  The host must be blocking the image or something.

I'm flashing with nefmoto.
The file is a .bin.  it is a modified version of my stock bin file.
It had the emissions features deleted and thats all.
I have not used me7sum because I'm not the tuner.  He knows what he is doing and I'm sure he checked the file thoroughly.

Here is a transcript of the error:

Failed to erase the memory sector. The new data being flashed likely conflicts
with the ECU's persistent data. The persistent ECU data can be replaced by
erasing the entire flash memory before programming. If the ECU may contains a
non-standard flash memory chip, it could be causing the erase to fail.
Press Yes, to erase the entire ECU flash memory and restart the flashing process.
Press No, to skip flashing this sector and continue the flashing process.
Press Cancel, to abort the flashing process.
WARNING: Only erase the entire flash memory if you have a good
communication connection with the ECU. If flashing fails after erasing the entire
flash memory, it is likely the ECU will no longer boot, and will have to be
reflashed on the bench using boot mode. This software does NOT support boot
mode.

The ecu is in the car. Not boot mode..
I have no bench harness.  But this error is scary so I might have to make one just in case.

The exact reason I opted out with this one. The questions asked are too noob, cant even follow forum etiquette.

Then we're done here.

Do not flash any file onto your ECU unless you know exactly what it is, and if the checksums are correct. Do not trust any file anyone sends you unless you have verified for yourself it is stock or if it isn't, the checksums are ok. End of story.

You should start by making sure the ECU's flash isn't on a riser.

Thanks good advise. I'll do that

Shouldnt always judge,,,

the file he sending out has CHKsum error also attached...

The file file he receiving is chksummed correct.. all file i send are chksummed end of....

Yep. I structure stuydub. He's been a great tuner so far.
I would have flashed it already but that error warning is pretty scary

Well I cracked it open
8n0906018t
Looks like a riser board to me.
And it looks like there's some solder mistake there too.

More pics

Nef isn't going to work with that, and whatever reads you are doing are likely bogus

Ordered a replacement ecu.
I'm surprised nefmoto gave me no errors or trouble reading it though

New ecu installed.  Luckily my car is no immo.  It started right up.    Though now it overboosts.  Must have been something "different" about that weird old ecu with the riser.

 Now that it is gone, and a normal ecu is in there, the boost is going crazy!  Or maybe this new ecu has a tune on it.

Boost is so high that I don't dare wot.  17psi at like 4500rpm

Not like anyone is paying attention it but all sorted out.
Stuydub gave me a nice file for the new ecu and it flashed and runs great.

No one is paying any attention because you did not post a single log, nor did you have any intent on DIY anything.
This forum was not created so that randoms can flip files, it was made to learn.

Good that you got your issue sorted, but the reason no one cares, is that you're not trying to learn anything.

Ok makes sense.  I guess what I was trying to learn was wtf was going on with all the weird errors when trying to flash.

I was just trying to update the thread with concluded information.  I think that's important to do because anyone searching with similar problem in the future will need this thread.

This has happened many times before actually. It's totally normal if there's a riser in the ECU that flashing will fail.
That's actually the first thing you check for when you get some weird error for erase or write and the car is still fully functional after that.