Volkswagen / Skoda / Seat RNS510 C3-C14 modded firmware update files

Below You can find the latest and as i guess the very final firmware updates for all versions of RNS510 to Your cars. It works like a charm. I've done a dozen of updates without any brick. Included mods:
- anti-battery drain software upgrade for gateway (automatically installed when RNS upgrading)
- unlocked video-in-motion
- unlocked testmode
and some other tweaks

You may ask: Which version do I have? 
Simply answer: please check Your HW version (by VCDS or on the top of the device)

C3/C4 
1T0 035 680 (1T0035680) 
1T0 035 680 A (1T0035680A)
Latest FW: 5238

C6/C7 
1T0 035 680 B (1T0035680B) 
C8/C9 
1T0 035 680 C (1T0035680C) 
C10/C11/C12 
1T0 035 680 D (1T0035680D) 
1T0 035 680 E (1T0035680E) 
1T0 035 680 F (1T0035680F) 
1T0 035 680 G (1T0035680G) 
1T0 035 680 H (1T0035680H) 
1T0 035 680 J (1T0035680J)
Latest FW: 5274

C14 
1T0 035 680 T (1T0035680T) 
1T0 035 680 R (1T0035680R) 
1T0 035 680 S (1T0035680S) 
1T0 035 686 G (1T0035686G) 
1T0 035 686 E (1T0035686E) 
1T0 035 686 F (1T0035686F)
Latest FW: 6276

Procedure:
1. For any unforeseen circumstances please copy Your navigation unit coding from VCDS/VCP
2. Download proper ISO file
3. Using some good quality CD burng ISO file using any image burning tool (Recommended to use Verbatim/TDK or similar and Imgburn software)
4. Turn Your RNS into Software upgrade mode by pushing together SETUP + EJECT + MIC (INFO) when on
5. Put Your CD into slot above the radio screen
6. Wait for update