Could you try doing a clean install on 29082012 build, and see if it works? Refer to this for guide: http://write.keinism.com/2012/08/30/...d-and-working/ After you are done, see if things work if you do not sync all your contacts, but only the more frequent ones. I'm trying to get your Wazapp to work minimally first. I'm guessing that it's the contacts that's stuffing things up, but that's just my wild stab in the dark. If the 29082012 build works fine, then try to update 03092012 over it and see what happens.