Replacement MFL (multifunction leather steering wheel) with 12 buttons for a 2009 Passat B6

It all started with the upgrade from UHV-Plus to UHV-Premium. Here is a request from me on the topic: /viewtopic.php?p=245947#245947.

Okay, here's the translation:

"I have now exchanged the following units:"
- New MFL: 3C8419091BEE74 from VW 3C Passat, complete with airbag and 12 buttons.
- From a reliable source, a new steering column control unit (part number 3C0 953 549AH) with a new coding: 0200512.
- UHV component: 1K8 035 730 B replaced by 5K0 035 730 E.

So far, the new MFL is working wonderfully: the UHV-Premium can be accessed (user profiles, address book, call lists, etc.), and the MFA responds to the new MFL, providing all the functions as before, plus the phone functions in the MFA and the RNS 510.

The only downside:
- Part 03: Brake electronics.
Sure, here is the translation of the text from German to English:

"1 error found:"
00778 - Steering angle sensor (G85)
005 - No or incorrect initial settings/adaptation.

- Steering assist system 44:
4 error codes found:
00566 - Power steering operation.
008 - Implausible signal - Warning light ON.
Environmental conditions:
Error status: 11101000
Error priority: 1
Error frequency: 1
Lost Count: 75
Mileage: 117,283 km
Time: 0
Date: 2013.12.28
Time: 20:39:60

Environmental conditions:
Hex Value: 0x7301
Hex Value: 0x7601
Hex Value: 0x7301
Hex Value: 0x7601
Hex Value: 0x7301

02546 - Steering end stop.
005 - No or incorrect initial setting/adaptation - Warning light ON.
Environmental conditions:
Error status: 11100101
Error priority: 2.
Error frequency: 1
Lost Count: 75
Mileage: 117,283 km
Time: 0
Date: 2013.12.28
Time: 20:39:60

Environmental conditions:
Class 15, Entry.
Speed: 779 RPM.
Speed: 0.0 km/h
(no unit): 7.0
Voltage: 14.20 V

00778 - Steering angle sensor (G85)
005 - No or incorrect initial setting/adaptation - Warning light ON.
Environmental conditions:
Error status: 11100101
Error priority: 2.
Error frequency: 1
Lost Count: 75
Mileage: 117,283 km
Time: 0
Date: 2013.12.28
Time: 20:39:60

Environmental conditions:
(no unit): 7.0
Steering angle: 0.00°
n.i.O.
Steering angle: 0.00°
(no unit): 12

00566 - Power steering operation.
008 - implausible signal.
Environmental conditions:
Error status: 01101000
Error priority: 1
Error frequency: 1
Lost Count: 75
Mileage: 117,283 km
Time: 0
Date: 2013.12.28
Time: 20:39:60

Environmental conditions:
(no unit): 7.0
Steering angle: 0.00°
n.i.O.
Steering angle: 0.00°

(no unit): 12

- Extension 77, Phone:
Sure, here is the translation of the text from German to English:

"1 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: 75
Mileage: 117,283 km
Date: 2019.08.07
Time: 20:40:01

The MFL had been reassembled due to the errors, but could be...
No errors detected (all cables connected).

Can someone help me? I would be happy.
Best regards,
Robert

Hello, I might be wrong, but it seems to me like this could be a simple issue of a missing basic calibration of the control unit. Has this been done? Having problems with it!

Yes, I have now calibrated the steering angle sensor. I've performed the alignment multiple times, but the steering wheel still has a slight leftward offset (approximately 5 degrees) when driving straight.
I only have one error left, in section 77. I've re-coded almost every single-digit number once, but the error keeps recurring.