PSA NAC RCC Updates

[Arthurvanderven]

Hey! I still get an issue to update my citroen e-c4 2022 "Software of the touch screen".
My Current version is 43.04.27.52_NAC-r0
Citroen update app suggests me: 44.06.44.22_NAC-r0

I followed this:
1. I downloaded 44.07.33.32_NAC-r0 from internet (not @Rui's website. Because it downloads super super slow there. I searched and found on google)
2. I've formated the USB key to fat32 (normal windows formatter)
3. I've exported tar file to USB by 7zip app.
4. I also downloaded licence file from the Rui's link. (i copied my uin number from exisinting uptade file from "citroen update" app) and copied into USB key.
5. i have SWL folder, UpdateInfo file, and license including license file folder.
6. I also connected the car to wifi.

I tried everyhing what i read in this form.
But i still get hardware being incompatible
Where do i make mistake?

Suggestion: Use the link citroen recommends to be for sure your license ID key is ok, then download from the NAC & RCC update, the 44.07.33.32 version as both 44.06.44.22 & 44.07.05.22 in some cases gives a hardware incompability. Put the above original key in the new downloaded folder. worked for me (now e.g. android is enabled, hoping for new version to enable apple carplay). (DS 7 2024 crossback)

[rui_saraiva]

@Arthurvanderven: The key is specific to your car (head unit UIN = unique identification number) and to the firmware version (UpdateID/MediaVersion) you want to install, so the key from Citroën Update is useless to install any other firmware version.

To install the firmware version 44.07.33.32_NAC-r0 version, which has an UpdateID/MediaVersion 001315031692686757, you need a file named "license/license_xxxxxxxxxxxxxxxxxxxx_001315031692686757.key" (where xxx...xxx is the UIN of your head unit). The license file downloaded from the Citroën Update was either "license_xxxxxxxxxxxxxxxxxxxx_001315031671116172.key" (for the 44.06.44.22_NAC-r0) or "license_xxxxxxxxxxxxxxxxxxxx_001315031675246547.key" (44.07.05.22_NAC-r0).

Or you can forget about the license file in the USB flash drive and just use the internal car connection (through the car's BTA, WiFi connection or Bluetooth tethering) to verify the license. And that's your case, regardless of the license files you had on the USB flash drive.

Just in one specific case, the firmware update enabled Google Android Auto (5.xx.xx.xx to 21.xx.xx.xx in the NAC_EUR_WAVE2 infotainment systems). The Android Auto and CarPlay icons are always greyed out if no Android phone or Apple iPhone, respectively, is connected through a USB data cable in the respective USB port (usually only one USB port supports data transfer).