A:AnswerI'm sorry to hear you're experiencing an issue with your Forerunner 935. Please go to support.garmin.com where you'll find many helpful FAQ's and videos on the functions of the device. If you are still experiencing an issue with your Forerunner 935 please reach out directly to a product support associate from that link for assistance.
Debbie with Garmin
A:AnswerThe Forerunner 935 does not have the ability to display anytime of detailed mapping data. You would not be able to purchase TOPO making for this device.
A:AnswerThe firmware on the device will correspond with the version of the device you purchase. We would not be able to answer which version all locations are selling, but these retailers should be able to answer this for you.
Debbie with Garmin