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CyanogenMod drops support for Samsung Vibrant because of 911 routing issue

December 12, 2011 | by Andrew Kameka

Android Hacks

CyanogenMod

Samsung Vibrant owners who love CyanogenMod will not see any new ROM’s, at least for the foreseeable future, from Team Douche. CM Forum Moderator ciwrl announced yesterday that development for the Samsung Vibrant has ceased due to an issue with dialing 911 Emergency services. The statement posted on the CM Vibrant forum reads

We are no longer supporting the Vibrant due to the inability to dial 911. We consider the issues related to this unresolvable without source code from Samsung related to the Radio interface layer and its interactions with the Audio layers and have taken the decision to no longer support this. We apologize for the inconvenience and strongly suggest that Vibrant users use a Samsung ROM due to the 911 issues with any ROMs based on open source code.

The problem stems from the way that the Vibrant handle call routing to 911. There are “patches” that make it possible to dial 911, but audio issues prevent the operator from hearing the caller. Figuring out the proper way to have custom builds dial emergency services require reverse engineering that has so far proved fruitless, so support for the Vibrant has been dropped. (Things could change with more information.)

ciwrl elaborated on his Google+ page that the risk of a CM user – or one using the ROM’s based on CM work – being unable to communicate with a 911 operator in the event of an emergency is too great to continue supporting the device. “The consequences of an actual emergency situation going wrong are not one we want to be a part of,” ciwrl posted.

The only other Samsung device known to face this issue is the Samsung Epic 4G. Adnan Begovic, a ROM developer working on the build for that device, states that reverse engineering to discover a fix “is now the primary concern for the group working on the Epic 4G build.” As disappointing as that may sound to some users who were anxious to use CM9 on their device, Begovic poignantly states why this is a necessary step, writing “I do not want to be a reason someone loses life or limb because they cannot get the proper emergency services.”