# No K-Line after upgrading my interface to V203!!

**URL:** <https://vcpsystem-forum.de/t/no-k-line-after-upgrading-my-interface-to-v203/889>\
**Category:** Allgemeine Fragen / General Questions / Основные в\
**Created:** [7. Juli 2015 um 19:57 UTC](https://vcpsystem-forum.de/t/no-k-line-after-upgrading-my-interface-to-v203/889 "2015-07-07T19:57:06Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![RTVM](https://vcpsystem-forum.de/letter_avatar_proxy/v4/letter/r/a587f6/32.png) [@RTVM](https://vcpsystem-forum.de/u/RTVM)\
**Post date:** [7. Juli 2015 um 19:57 UTC](https://vcpsystem-forum.de/t/no-k-line-after-upgrading-my-interface-to-v203/889/1 "2015-07-07T19:57:06Z")

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Hi to all,

i have the VCP System(VAG CAN PROFESSIONAL + K line and EDC16 Flasher) since few years. Until now all worked very fine and i mostly use it for ECU Flashing with original files!!  
Few days ago i make update to “VCP+K V4.0.0 19.06.2015 Smartcard+ChipTuning” and i update my Interface to V203.  
Now they system work only on CAN based systems. I cant select between K-Line and Can anymore.  
Is there any solution for this? Downgrade or else?

Thanks for any help.  
  
  
B.R

RTVM