Hello
I have Audi A6 2012 4G C7 with MMI 3GP High with SIM 3G and have problem with onboard 3G internet. Sometime it works sometime not.
I want to swap Navi to facelift model due to LTE module and not good working my 3G internet.

Questions:
1) Is there any way to swap only 3G module for LTE module ?
2) is there any way to swap preface MMI to Face MMI ?

I have:
Code:
Address 5F: Information Electr. (J794)       Labels: 4E0-035-6xx-5F.clb
   Part No SW: 4G0 035 670 P    HW: 4G0 035 670 H
   Component: H-BNT-EU      H49 0939  
   Revision: --------    Serial number: 190DU0C7501672
   Coding: 050100010003F9FD2D348F3E00000003000001000100000002
   Shop #: WSC 28358 001 1048576
   VCID: 306B76F163A629BECE-8064

   Subsystem 1 - Part No: 8R0 060 884 DF
   Component: EUR 2016  2204 

   Subsystem 2 - Part No SW: 4G0 919 605 B    HW: 4G0 919 605 B
   Component: DU8 C7 SV  H42 0021 

   Subsystem 3 - Part No SW: 4G1 919 610 C    HW: 4G1 919 610 C
   Component: E380 BDT C7  H11 0204 

   Subsystem 4 - Part No: 8R0 060 961 C
   Component: CD-Database  3638
And I want to swap with

4G1035044D (or simmilar)

Is it necessary swap also:
- panel (surrounding knob)
- MMI display
- antene + amplifiers

Thank you for answer.
Tomas