Control: 77 incorrectly encoded, FSE 5K0 035 730 E

I upgraded the installed hands-free system (Passat Variant 2009, part number 1K8 035 730 B) to 5K0 035 730 E and also replaced the multifunction steering wheel and steering column control. Now, user profiles can be managed in the new hands-free system. I have a question related to this topic:
Okay, I'm ready. Please provide the German text you want me to translate into English. I will only provide the translation.

To find the error in the FSE encoding, I started changing all the settings to see if the error would change. It hasn't changed yet, but I haven't tried all the possibilities.

Gibt es denn keine Codier-Liste für dieses Steuergerät und Zugang zu dem gesperrten Bereich?

I would like to continue using the installed phone case as a charging station and for its antenna connection.
The salesperson claims that this can be coded, but doesn't say how.

I've been searching the internet for solutions for weeks now, but unfortunately without success, and I'm starting to think that I might have purchased a somewhat unusual or uncommon car stereo system.

Does anyone have any ideas?

"Die Sonne scheint hell und warm. Die Vögel zwitschern fröhlich in den Bäumen. Ein leichter Wind weht durch das Feld und lässt das Gras sanft wiegen. Es ist ein wunderschöner Tag."

The sun is shining brightly and warmly. The birds are chirping happily in the trees. A gentle breeze blows through the field, causing the grass to sway softly. It's a beautiful day.
Address 77: Phone (J412)
Label file: | DRV\7P6-035-730.clb
Part number SW: 5K0 035 730 E, Part number HW: 5K0 035 730 E.
Component: TELEPHONE H09 2902
Revision: 1B001001 Serial Number: 00007662449907
Encoding: 0011040000000110
Operating number: WSC 01383 790 50316
ASAM Dataset: EV_UHVNA A01719
ROD: UHVNA.rod
VCID: 275B9E845E554572B4-8073

"One error found:"
13636608 - Control unit incorrectly coded.
U1014 00 [009] - -
confirmed - checked since last deletion.
Environmental conditions:
Error status: 00000001
Error priority: 4
Error frequency: 1.
Lost Count: 76
Mileage: 117,302 km
Date: 2019-08-08
Time: 12:50:01


End----------------------------(Duration: 03:0-----------------------------

I'm not exactly familiar with the specific engine control units (ECUs) installed in your Passat, so I can only offer some educated guesses.

If my memory serves me correctly from my Passat 3C days, yours should still belong to the generation with a BnSTG module. However, newer vehicles (including the one with the FSE) have a BCM instead. It's likely that other control units were also changed.

If these assumptions are correct, I believe it may not be possible to activate new control units (ECUs) in this "old" vehicle. It is possible that all the old ECUs would have to be replaced with newer ones, and there is no guarantee that a suitable new ECU will always be available for the older hardware.

If you are certain that this hardware is fundamentally from a particular generation, then you should search the internet for other car scanners and compare their coding with yours. If I recall correctly, there used to be a Danish website that provided information on this.

I'm sorry that all the information is so vague. I worked on this about eight years ago and have since forgotten most of it.