I flashed gummyjar 2.5 and since my navigation is not working. I took the phone back completely to stock (sbf) and reinstalled gummyjar. I'm still getting "checking navigation availability" when I fire up car home or navigation. I have done battery pulls, rebooted with anreboot, wiped cache, dalvik cache, uninstalled Google maps then reinstalled, switched into airplane mode ans back out, changed by GPS widget, manually turned off and on GPS... nothing seems to be working.
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