No, you can't downgrade firmware. And as far as I'm aware, if the latest firmware's certificate has expired (see my earlier post in red above), then even older firmware is likely to have their certificates expired also.superkick wrote: 14 Nov 2024, 09:43 Dear All,
currently i'm trying to update the nac wave2 of my Peugeot 3008 from 2019. As i understand the most actual update 21.08.90.52_NAC-r0 has expired licenses so installation will brick the system.
Is it possible to update to a earlier version as 21.08.87.32_NAC-r1 ?
When i try to update i constantly get the message; Not compatible with hardware
I tried several times with different USB drives (8gb, 16gb, 32gb) but without succes.
Tonight i will try the BSI reset as advised. But is it even possible to update from my current version 21.07.16.31_NAC-r0 to a way newer version?
And is there any possibility to get the 21.08.87.32_NAC-r1 version with license file from the forum?
My vin is VF3**************[VIN obfuscated, can be read by forum staff]
Many thanks!![]()
However, I've just checked the firmware again today and can see that the certificate seems to be valid - so you can try again using this specific links and licence file, but I can't guarantee it:
Firmware Version 21.08.90.52_NAC-r0
Superkick Licence File
Map Version 27
Instructions for Updating NAC or RCC Firmware, Maps & Licences
If this works for you, kindly let me know, so I can advise others, thanks.