Audi A5 Forum & Audi S5 Forum banner

MHS2 Navigation and firmware updates - currently 2022/2023

104545 Views 636 Replies 128 Participants Last post by  Ebu90
This is it!
The proper activator for Audi MHS2 systems made by delphi.
It a result of deep system analysis and some good reverse engineering.
The time has come and i have decided to share it!
Now is available free of charge for everyone!

Unlike the leaked version of the activator this one is tested and in use for quite long time now.
You will not loose ability to install custom POI's and for sure it will not cripple your legal function enabling codes.
I cannot guarantee that will work on every MMI out there, but i never had issues ever since i created it back in 2016.
Regardless of what some might say, update of the MMI is not mandatory. This is entirely up to you.
If your MMI is working properly and you have not noticed issues then you can continue using same version.
Believe me, i know these systems inside out.
As you will see bellow the supported versions list is quite long and will only get longer with time!
In case that you do decide to update then subscribe to this topic as i will update it to include software update info and files.

In the archive you will find a manual how to use it.
It is very simple process and you will only need one empty SD card size 8-32GB FAT32 formatted.
After activating the MMI you will be able to use latest navigation maps.

Here is list of supported versions, it was tested on many more but for now i decided to include the following.
If your software is not the support list then send the backup that the activator will make and i will add it. Always make sure you are using the latest version of the activator.
Almost any version out there!
If for some reason you cant get it to work following the manual then its likely that your unit was already patched.
In such case contact me and i will see what i can do about it.

Please have in mind that im doing this in my free time and that means that im not 24/7 available :)

The map of MHS2/MST2(soon to be released) is not installed, you copy map on SD and just insert in the unit. If coding is ok and fecs are shown as valid then map will work.
Simple as that :)

MAP 2022/2023 -> 11.64 GB file on MEGA
MHS2_ER_AU_K0129 -> 2.09 GB file on MEGA
MHS2_ER_AU_K0471 -> 2.53 GB file on MEGA
MHS2_ER_AU_P1242 -> 2.55 GB file on MEGA
MHS2_ER_AU_P2035 -> 2.54 GB file on MEGA

MHS2_US_AU_K0471 -> 1.02 GB file on MEGA
MHS2_US_AU_P1242 -> 1.01 GB file on MEGA
MHS2_US_AU_P2037 -> 1.02 GB file on MEGA
Software update instruction -> 720.9 KB file on MEGA
After using the activator unit will accept modified meta.
What you need to do is take the meta from 1242, remove any SupportedTrains or BlockedTrains and then replace MetafileChecksum with skipMetaChecksum.

For for example with the meta from 1242:
Remove those two lines
BlockedTrains = "MHS2_EU_AU_P01*,MHS2_EU_AU_K01*"
MetafileChecksum = "cd15b1487917b24e0ca50e0716bfa3d6dd7d710d"

And add these two:
EnableUserDefinedSWDLMode = "true"
skipMetaChecksum = "true"

Then make sure all components are select, the bare minimum is - MCM,78K0R,AP_ZR_HIGH1,TNRREF. Nice to select SpeechRes,SpeechAppRes.

Keep in mind that if something goes wrong you might not be able to fix it yourself and might need to send it to me.
This document and activation are provided by THE PROVIDER "as is" and "with all faults." THE PROVIDER makes no representations or warranties of any kind concerning the safety, suitability, lack of viruses, inaccuracies, typographical errors, or other harmful components of this document. There are inherent dangers in the use of any software, and you are solely responsible for determining whether the procedure described in this document is compatible with your equipment and other software installed on your equipment. You are also solely responsible for the protection of your equipment and backup of your data, and THE PROVIDER will not be liable for any damages you may suffer in connection with using the information found in this document. You are also solely responsible for any modifications to the software of the MMI system, THE PROVIDER will not be liable for any claims from the vendor of your MMI system concerning the use of third-party software on the MMI system.
Selling this document and activation is forbidden.
Including this activation or its parts in any other tools should happen only after contacting me.

Attempts to modify the files might render the system inoperable.

Enjoy :)
See less See more
  • Like
  • Love
  • Helpful
Reactions: 5
1 - 20 of 637 Posts
current version 2.5

If you used version older than 2.3 its recommended to install this one.
From version 2.2 and above there is option to remove the patched files in case the unit does not want to work ok or goes in reboot loop.
To do that take empty SD and create one empty file on it called "remove", put that SD in the unit and restart the unit. Once booted it should remove the patch and on next boot will start with stock software. This is only in case something with the flash goes wrong as there are some
events that can case data corruption and this might affect the SWaP process.

Whats new in version 2.5 - Seems that on older software versions there are conditions that might prevent the unit from booting after the first restart. This version is attempt to eliminate that risk. No need to reinstall, this "bug" can be triggered only during install not after that.

Whats new in version 2.4[/B] - added check to help avoid potential failure where unit might not start after the first reboot. Although there was only one case and it’s not verified that latest version of the activator was used, I have decided to make minor change to help avoid such cases. No need to reinstall, this "bug" can be triggered only during install not after that.

Whats new in version 2.3 - moved the patched files from persistence to ffs partition. Although i never had such case there is a possibility that data corruption might happen in persistence partition. If you are running 2.2 you are kind of safe as in case something goes wrong you an always remove it. Process is documented in "Emergency removal" paragraph of the manual.

Whats new in version 2.2 - patch support for almost all firmware versions. Emergency removal option.
See less See more
  • Like
  • Love
Reactions: 4
That i can verify only after i have update pack that im able to install on my stock unit.
Wonder if it could be coding related.
So far all i get is "No valid update data found ... "
I dont ever use that so focus was never there.
You can please some of the people some of the time ...
Every now and then i get asked such questions. Because of the way i address them some people call me arrogant, but when you see the things that i've seen ...

I will try to be as polite as possible :)
  • Check if its already applied (this activator) is not made because of the way it works.
  • File is deleted before reboot yes, otherwise will end up in apply loop :)
  • Original files are kept too

btw i still cant install PersonalPOI even on stock unit.
as you can see this version is not on the list with supported versions.
If you check the manual you will see what the activator might do.
its all in the manual, common guys read that.
  • Like
Reactions: 1
I’ve applied the activation script without issues, and can see that there are now a lot more activation codes listed on my system.
Hi, if you did that then you can just swap the cards thats it.
There is no MAP install here.

@Janch no update needed! A lot of software versions are supported and as you can see "802 - MHS2_US_AU_P0448" is one of them.

Advice to all users - if the recommendation does not come from me then better ignore it. I will not support other people mistakes!

  • Like
Reactions: 1
Two guys asked, one with P0470 which is not yet supported but update is not mandatory and one with 448 which said that its installed already. Your reply is just after that one.
Maybe that caused the confusion maybe not.
The main point is - update is not mandatory, especially when there is so much things that might go wrong.

p.s. i see the confusion now. in the description is listed as 448 US but he have 448 EU
in reality they are the same in some parts. That's why he was able to install it :)
New software will not give you visual improvements :(
It does fix some issues reported by users and in 2035 Audi switched from Google Maps to Here sat map, this option does require license.
If your system is working ok then yes "if it ain't broke, don't fix it"
But if you do decide to update then you can find all needed software here, there is a manual too.
After that just use the latest version of the activator and you will be able to use the new map again.
by the time you wrote this version 2.0 is no longer available.
Come on guys, read the first page please. I dont have time to address such questions.

As for the coding, coding is only if you will install AMI and want to use Audi Smartphone interface.

This topic is mainly for map update, yes its true that activator will unlock other possibilities but i will describe that on a later stage.

  • Like
Reactions: 1
If you have the AMI (two USB and not charge only as its on the picture) then you should already have Carplay/AndroidAuto.
If you dont have it then after the activation and the coding you will have it.
@Damjan777 double check the coding and make sure it is as shown in the manual.
Send me the log from the activation (thee is one log.txt on the SD)
Make sure you are using the MAP from the first page and SD is FAT32.
  • Like
Reactions: 2
First - please write in English.
Second - no, your system is not covered by this activator.
I downloaded maps from the link, formatted the fat32 card and threw all the contents of the package on the card, inserted the card in SD1, go to the red menu - Update and I do not see the memory cards.
The map of MHS2/MST2(soon to be released) is not installed, you copy map on SD and just insert in the unit.
If coding is ok and fecs are shown as valid then map will work.
Simple as that :)

With next release i will extend the validity of the map ... seems 2030 is just around the corner for some users ;)

  • Like
  • Haha
Reactions: 3
Your version seems to be newer than 129 but still way older than latest available.
Because of that the process of update is not that simple, there are cases where users fail with that update and then the MMI does not work properly or at all.
You can always try to update or find someone that is experienced enough with those kind of MMIs and remove the risk form you.

this activator will not affect google in anyway ... but if you updated the software then this is other thing.
On the other hand Google is discontinued from Audi since almost 2years.
The 2035 software have Here sat map instead but that does require valid audi connect subscription.

Mmm nope.
Here maps will never work w/o active audi connect.
Check your licenses screen.
Other case is if audi did turned on that for free but i doubt that.

Anyway, the activation does not mess with any online functions, but you can always reinstall the software to remove the activator.

as the patch does not touch the coding and/or adaptation then should be the same open or not.
If you see some issue with bonnet closed then please let me know and i will add that to the manual.

This activator is not for your unit type.
Your mmi does not have navi or smartphone interface, no point of trying anything.
Here is what you can try.
This is for small color dash with MHS2 system.
It will not have any effect if you installed virtual dash.
Change navigaion_map_trasmission_mode to MOST
Rectangle Font Parallel Screenshot Number
See less See more
Version 2.2 just uploaded.
Support added for almost all versions available.
Coding info added for map on small FIS.
Fecs extended to F0 ... hope till will be enough for some users ;)

  • Like
Reactions: 4
1 - 20 of 637 Posts