PSA NAC RCC Updates

[gcdec]

Hello, I had no problem a few months ago updating my maps to 20.0.0-r0. My car is wave 4, and has the most up to date firmware installed 44-07-33-32_NAC-r0. I saw there was a new map update 21.0.0-r0. I downloaded it. I formatted my 32gb sandisk usb stick to Fat32, and using 7zip sent files straight to usb stick. I am using windows 11. Went in my car and started it and turned off start stop, engine running, but every time I insert usb stick in car and press install on the screen a message comes up straight away saying map eur failed. Cant understand why as I have done exactly the same as I did with the map update 20.0.0-r0. If someone could help me get this problem sorted I would be so so grateful. @rui_saraiva

Can anyone confirm they have successfully installed map update 21.0.0-r0

[kazulbek_87]

@kazulbek_87:

The 44.06.44.22_NAC-r1 firmware version is exactly the same code as the 44.06.44.22_NAC-r0 version, but with a certificate valid until November 18, 2028 (just like the 44.07.33.32_NAC-r0). If you already have a 44.07.05.22_NAC-r0 or 44.07.33.32_NAC-r0 version, you can't install this "new" 44.06.44.22_NAC-r1.

License for the 44.07.33.32_NAC-r0 and your car:
https://majestic-web.mpsa.com/mjf00-web ... D4D964224A

Thank you for the answer and the license.
Currently, I have version 43.04.26.52 installed.
Today I will try to install version 44.07.33.32

I downloaded 44.07.33.32_NAC-r0 from the website, but the file size doesn't match.
The file I downloaded is 6 164 270 KB and 6 164 268 KB!!!

[rui_saraiva]

Code: Select all

> curl --head https://majestic-web.mpsa.com/nas/eu/mjb00/PSA/mjbsu/PSA_ovip-int-firmware-version_44-07-33-32_NAC-r0_NAC_EUR_WAVE4.tar
HTTP/1.1 200
Accept-Ranges: bytes
ETag: W/"6312212480-1768999041000"
Last-Modified: Wed, 21 Jan 2026 12:37:21 GMT
Content-Type: application/x-tar
Content-Length: 6312212480
Date: Thu, 15 Oct 2026 19:09:04 GMT
X-PSARP: pywb5c1
Set-Cookie: PSACountry=PT; Domain=.mpsa.com; Secure; Path=/

Content-Length: 6312212480
The "Size" in my table is still correct.

[kazulbek_87]

Code: Select all

> curl --head https://majestic-web.mpsa.com/nas/eu/mjb00/PSA/mjbsu/PSA_ovip-int-firmware-version_44-07-33-32_NAC-r0_NAC_EUR_WAVE4.tar
HTTP/1.1 200
Accept-Ranges: bytes
ETag: W/"6312212480-1768999041000"
Last-Modified: Wed, 21 Jan 2026 12:37:21 GMT
Content-Type: application/x-tar
Content-Length: 6312212480
Date: Thu, 15 Oct 2026 19:09:04 GMT
X-PSARP: pywb5c1
Set-Cookie: PSACountry=PT; Domain=.mpsa.com; Secure; Path=/

Content-Length: 6312212480
The "Size" in my table is still correct.

I can see that everything is correct in the table, but when I download it, the file is incomplete. I can't figure out why