Have you tried a reset? https://productforums.google.com/forum/#!topic/nexus/7SNIT8xPYzc
@hippy started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
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Have you tried a reset? https://productforums.google.com/forum/#!topic/nexus/7SNIT8xPYzc