[Kirkp5560]

I had the same problem and the thing that helped me was the NAC restart:

After that i could do the update without the error

Any idea how to force the restart on the previous model 208? Thanks

 

[Paul-R]

Does that have a NAC system?

 

[Kirkp5560]

Yes it does

 

[Paul-R]

Does the method shown in the video not work for you?

 

[Kirkp5560]

Does the method shown in the video not work for you?

Mine has the older interior

 

[Paul-R]

Are you sure that's a NAC system? I genuinely don't know as I have no experience with the 208. What year is it?

 

[Kirkp5560]

Are you sure that's a NAC system? I genuinely don't know as I have no experience with the 208. What year is it?

2016. I’ve used the NAC firmware updates before and they have worked fine.

 

[Olavi]

Maybe this works:

 

[Kirkp5560]

Thank you! I’ll try that tomorrow

 

[Paul-R]

Unfortunately that's for the SMEG system. Kirkp5560 has a NAC system.

 

[rui.saraiva]

Hello all-

I just tried the workaround shown above and it didn't work for me. Got the same 'not compatible' error. I unplugged all cables from the back of the head unit other than the multi pin which holds the power and the cable to the touchscreen. Pretty sure I followed the instructions correctly but I couldn't find a picture online of which cables are which. So I guess we just wait for Peugeot to update the firmware.

That's why I wrote "Disconnecting only the green FAKRA socket on the back of the head unit, that directly connects it to the BTA, might not be enough. Both the NAC and the BTA are also connected to the CAN bus".
You need to disconnect the BTA, that ECU is connected to the CAN bus. And the CAN High and CAN Low pins (10 and 21) on the head unit are precisely on the multipin socket.

 

[Kirkp5560]

Oh, OK. I will try that again today. I was not clear exactly which sockets/cables were which. I searched for an illustration showing the labeled sockets but couldn’t find any. Cheers and happy new year!

 

[Kirkp5560]

I tried it again. (I’m not knowledgeable about the names of the connectors so I included pics. I had added an aftermarket back up camera and module in the past so it may look a little different than stock).
I disabled the date/time auto set, disconnected the battery. Then I disconnected everything and reconnected the two cables to allow the USB to be recognized and for the screen to turn on. (See pics) I inserted the flash drive and got the same ‘not compatible’ error.

 

[rui.saraiva]

The other end of that green FAKRA/USB socket is the BTA. You need to disconnect the BTA, not the USB cable that connects the BTA and the NAC.

The BTA is something like:

Módulo bluetooth: PEUGEOT 308 SW II - 9831611580

► Está a ver Módulo bluetooth para PEUGEOT 308 SW II - Ref: |REFERENCIA|. Disponível em AVF

www.avfauto.pt

 

[Kirkp5560]

Thank you again Rui! Is the BTA near the head unit or elsewhere in the vehicle?

 

[rui.saraiva]

On the 308 T9 I believe it is located behind the touchscreen.

 

[rui.saraiva]

It seems they finally fixed it: https://www.peugeotforums.com/posts/2451121/

 

[Changedforlife]

Is there somebody that have tested it already? Like to hear the experience.

 

[rui.saraiva]

I'm running this 21.08.90.52_NAC-r0 firmware version, but it was installed long ago, before all this certificate nonsense. In fact, before it was even released to the public. No problems so far.

 

[Changedforlife]

I understand what you're saying, and understand that he just functions with you. But actually mean the people who still have to/want to install it. What the experiences now are, after all the corrections