ATTENTION: The procedure described in this guide is performed at your own risk. I am not responsible for any damage that may occur to your system/car as a result of following this guide.
I have upgrade my Seat Leon of 2020 from the firmware version 1896 to the 1940.
ATTENTION: If your existing Leon/Formentor software is older than 1890 or you get a checksum error when trying to update then please download and install the included 1899 software release link prior to the installation of 1940. This upgrade works from the 1804 version and up.
For upgrade your MIB3 infotainment follow these step:
- Take an USB storage device with 16GB of available space, or higher. If you need to use an USB-A to USB-C adapter be sure that it is of good quality. I have use a 64GB USB storage device with an USB-C connector.
- Download the zip file here available. This file contain the firmware v1940.
- Extract the file using 7-zip.
- Insert the USB storage device and format as FAT32 (exFAT for larger devices)
- Drag the 2 folders within the download container folder onto the root of the USB device. You should see “Meta” & “data” folders at the root of the USB storage if you have done it correctly.
- Remove the USB device from PC and place into one of the vehicles front USB ports.
- Start the car engine and keep it on
- Hold the menu button on the display, then press “software versions/updates”
(The unit may enter the red engineering menu for this. It can take a minute to do so).
- Press “Update”
- Press “USB”
- Press the software version it presents then scroll and press start
- Once update is complete, press back then cancel software version management
- Do not remove the USB storage until the Infotainment is back to normal operation
- Once back to normal operation, remove the USB device. You’re good to go!
Yes Yes THX
Worked exactly as described and it took 20 minutes to complete.
Hopefully this version is more stable and does not restart randomly.
Thanks! 🙂
THANK YOU !!
Work as espected !
Thanks, it works like a charm, From 1896 -> 1899 -> 1940
Worked fine from 1898 to 1400 😉
Bonjour,
Pourriez vous confirmer que la mise à jour v1940 que vous proposez en téléchargement est d’ origine SEAT ?
Hello, is it possible to do the upgrade starting on the 1788 software version ?
not work for 1890 to 1940 my unit 5FA035862K
Hello,
This firmware is also ok for Cupra Leon Mk4 2021 or is only for seat.
Thanks in advance for your comment.
Hello, m’y Leon’s firmware has never been updated, so i’m trying first to update to 1899.
There are 8 updated pendant, but it’s stuck AT 0% on the first for a long time now. No errors but no progress. Is it normal?
Did anyone else upload the update on another cloud storage that does not have a limited bandwidth?
Thank you so much!
J’ai un formentor 204cv hybride, version 1900. Est ce que la version 1940 est compatible ?
Hi, everyboby
Does this firmware is the same that Cupra Formentor KM ?
THX
de volgende update 1969 er misschien ook
Posso installare la 1899 aprtendo da una base versione software 1672?
New firmware version here https://www.danielecortellazzi.it/article/seat-leon-mk4-mib3-firmware-upgrade-to-version-1969/
Updated from 1780 to 1899 works good in my Seat Leon PHEV 2021. Now 1940 and 1969 will also work just fine I think.
1780 –> 1899 –> 1940 –> 1969 worked fine for my Leon KL 2021 PHEV
I have a basic MIB 3 infotainment 8,5″ and nothing happens if I press the menù button…why?
I LOVE YOU! Thank You! Looking so long for this!!