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  1. #1
    RoadBikeReview Member
    Reputation: GDTRFB's Avatar
    Join Date
    Feb 2011

    Garmin 820 drops TBT, loses route during a ride

    Today I used my 820 with TBT on a 101 mile ride. At around mile 20, all I saw at the top of the screen was "End" or something similar. TBT disappeared. Soon after, the map page disappeared too. I had endless problems reloading the route and when I enabled correction to get me back, I didn't get any TBT prompts. When I did get back on the route, everything worked flawlessly.
    This isn't the first time something like this has happened. I don't use "Navigate to start". If I didn't have a Varia radar tail light, I'd cut my losses and buy a Wahoo.
    At least I'm enjoying the ride.

  2. #2
    RoadBikeReview Member
    Reputation: Srode's Avatar
    Join Date
    Aug 2012
    interesting, I've never had a problem with mine TBT, even over 200 miles in rural KS back roads - Did you do the recent upgrade to the firmware launched last week I think? Sounds like maybe the route file was corrupted some how when saved.
    Moderation is boring - do epic s##t

    Trek Domane
    Niner RLT9 (Gravel Bike)
    Trek Crockett

  3. #3
    Get me to In&Out
    Reputation: spookyload's Avatar
    Join Date
    Jan 2004
    I will tell you what they will tell you. Sync the unit to save your data, then do a hard reset. You can re-sync to put your settings back. I have had five different versions of Garmin, and each of them start to suffer from repeated firmware upgrades. The hard reset clears up the mess.

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