/en/qa/tag/vsm350 Powered by Question2Answer /en/qa/86407/viper-smartstart-not-communicating-with-evo-all I&#039;ve installed a VSM350 in my 2008 Grand Cherokee, following the instructions (splice grey wire with black, plug in connector). The VSM350 has been activated by a local dealer and my viper online account is properly set up. I can update GPS information via the smartstart app (this confirms unit is powered up and communicating with the internet properly). I am not able to lock, unlock, or remote start using the app. When I attempt to lock/unlock or start, I receive the message &quot;unlock failed at [time]&quot; I have enabled H4 via flashlink. I live in a major city and the vehicle is parked outside, the issue is not related to cellular coverage; the app reflects that the vsm350 has 4 or 5 bars of signal strength.<br /> <br /> I appreciate any suggestions to enable the smartstart to communicate with the evo-all to enable the lock/unlock/remote start.<br /> <br /> Thank you Jeep /en/qa/86407/viper-smartstart-not-communicating-with-evo-all Wed, 06 Feb 2019 10:18:47 +0000