[amigo74]

Hello,

i want to update the software of the msv70 dme with winkfp tool.
It has very old software from 2006 installed and was never updated.
I have Installed bmw standard tools 2.12 with spdaten v49.
inpa and nscxpert function right with obd2 can Interface.
It is for an older e90 with n52 engine from 4/2006 with msv70 dme.
i only want to update the dme.
Can anybody explain step by step how to do this ?
How risky is it to break the dme ??

Kindly regards

[wildcatcrazy]

Why not use the latest DATENs (v56.2)? There's always a risk of bricking it, especially if there isn't sufficient power being applied during the flash process.

If you do a search for WinKFP flash, you'll find the steps. Just make sure you're using comfort mode.

[amigo74]

if the dme is updated must be any other device updated too ???
How long does it last to update with normal d-can cable ?
What can i use to stabilize the power circuit ?
Have i access to flash the dme once again if everything is going wrong during the update process ???

[Sensible_]

First I think you need to do some more reading on this. Unless you can afford to brick expensive ECU's?

When flashing DME/DDE, CAS, EGS an external power supply capable of 13.8v rated at 70amp is ESSENTIAL. If you flash those modules without a power supply connected then you may be lucky and everything is fine, but equally you may end up with a non starting vehicle and have to run to a dealer with your tail between you legs. A power supply most people use is the Schumacher inc-700a.

DME/DDE should be updated with EKP and EGS I believe. You can update it on its own of course and it will be fine, maybe a few minor issues that you'd barely notice.

If you flash your DME and brick it. You'll have to either send it off to someone who can repair ECU's or go to the dealer. Once bricked, reflashing via obd is impossible...

[amigo74]

Never touch a running system..
i think the risk of bricking is too high...
And then sitting and crying....
Have anybody updated the msv70 with winkfp and can report about the flashing process ??

[rjahl]

Originally Posted by amigo74

if the dme is updated must be any other device updated too ???
How long does it last to update with normal d-can cable ?
What can i use to stabilize the power circuit ?
Have i access to flash the dme once again if everything is going wrong during the update process ???

You are staring into Alice's rabbit hole. Updating the DME is not that hard but you need the right tools and knowledge. It's really easy to brick the DME and normally it's not that tough to recover but you need to know how. If you are simply wanting to update the software, have it done for you. You are not going to gain any power but the reset might make it feel that way while its rebuilding its adaptation tables.

If you want to learn. You will need a good cable, a really good charger, our cars pull over 20 amps during the flash and you will probably be updating the boot sector so the flash will run twice and take about one hour. After the flash you will need to re code the DME using nscexpert. Won't hurt to have a second vehicle to get you to work if something goes wrong and you need more time to resolve the issue.

I don't think the daten files for the msv70 changed after v49. The last updates are in the 931 files.

BTW, most of the time the DME really does not Brick, a bad flash just puts it into recovery mode.

[ctuna]

If you really want to update you cars software, isn't it better
to use Ista/p with a big power supply.
Also if you want to mess with your DME wouldn't a AAtune or with
three stage intake be the thing to do.

[amigo74]

ista/p requires icom interface.
There is also a dcan emulator, but this makes not so much sense.
if i understand this right, the dme is reseted to factory defaults after updating the software.
So can i backup the dme data with nscexpert before i start the update process and then write it back to the dme?

[Sensible_]

Originally Posted by amigo74

ista/p requires icom interface.
There is also a dcan emulator, but this makes not so much sense.
if i understand this right, the dme is reseted to factory defaults after updating the software.
So can i backup the dme data with nscexpert before i start the update process and then write it back to the dme?

What exactly would you want to back up from the DME?

Winkfp + NCSExpert is far more powerful than ISTA /P.

[808AWD325xi]

Originally Posted by amigo74

ista/p requires icom interface.
There is also a dcan emulator, but this makes not so much sense.
if i understand this right, the dme is reseted to factory defaults after updating the software.
So can i backup the dme data with nscexpert before i start the update process and then write it back to the dme?

No, you cannot "backup" the DME with NCS-Expert, nor do you require an ICOM interface.

Buy a used MSV70 DME and clone your original DME using a Background Debugging Module (BDM) prior to attempting flash reprogramming with WinKFP. That way if anything goes wrong, you simply install the clone DME and your back on the road.

EVC's BDM100 supports the MSV70:
https://www.evc.de/en/product/bdm/

Page 21 of the user manual describes the process:
https://www.evc.de/ftp/winols/BDM100-en.pdf

A forum member soldered a BDM header to his DME rather than using a probe:
http://www.e90post.com/forums/showthread.php?t=1035058

If you would rather not DIY, there are several companies out there that will clone your DME for you.

[rjahl]

Originally Posted by 808AWD325xi

No, you cannot "backup" the DME with NCS-Expert, nor do you require an ICOM interface.

Buy a used MSV70 DME and clone your original DME using a Background Debugging Module (BDM) prior to attempting flash reprogramming with WinKFP. That way if anything goes wrong, you simply install the clone DME and your back on the road.

EVC's BDM100 supports the MSV70:
https://www.evc.de/en/product/bdm/

Page 21 of the user manual describes the process:
https://www.evc.de/ftp/winols/BDM100-en.pdf

A forum member soldered a BDM header to his DME rather than using a probe:
http://www.e90post.com/forums/showthread.php?t=1035058

If you would rather not DIY, there are several companies out there that will clone your DME for you.

+1

If you are going to end up tuning yourself clone is the way to go. I tried the Odb stuff and just lost too much time. I have a spare DME and just program the new tune in which ever DME happens to on the bench. You can even run a cable from the DME into the cabin if you want to tune on the fly.

In the end, the OP needs to decide how deep he want to fall into this rabbit hole. If he just want the latest file flashed into his car and nothing more. My advice is to pay someone who knows how to do it.

[nate5ks]

I flashed my DME using winkfp and it worked fine. I had a power supply of course. you will need to code with NCSEXPERT and I also needed to sync the DME/CAS before starting the car.

practice this process on other modules before trying the DME. it'll be worth your time.

[amigo74]

What must be coded with ncsexpert ???
How to sync dme and cas interface ??