If you own the new Nexus 5 and experience some trouble with Google Now, you’re not alone. According to multiple reports, Google Now is not functioning properly on the new device and it is also effecting other Android devices that they own. In some cases, Google Now doesn’t load any information, rendering it useless. The app will not sync and is even crashing when activating it for the first time.
A solution for the issue has been to sign out of their accounts and then signing back in; however, this hasn’t been a successful resolution for many. Some people have even performed a factory reset, but that too has been hit or miss. Android Police explains that it could be due to Location History being turned off or not available. Certain countries do not allow location tracking; therefore, they would be left out from using Google Now.
Google is recommending that users send in feedback from their device. To do this, go to Settings / Help & Feedback / Send Feedback.