This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

GPS drift and inaccurate elevation - still not fixed

Hi folks, 

Like many of us, my Forerunner 245 was affected by the software update that caused major GPS drift. It improved after about two weeks of troubleshooting with Garmin. However, it is now drifting again. Garmin is telling me that it's "within their acceptable margin of error" but it is drifting enough that while running with a friend on the same route right next to each other, my Strava doesn't recognize segments and my watch recorded over 400' in elevation compared to my friend. (She has a Suunto)

I am troubleshooting with Garmin once again and now they are telling me I have to record my GPS point every second. I've had this watch for about 3 years  and never had my watch set to measure each second before, in the interest of extending battery life. I'm really frustrated that this is their final "fix" which isn't really a fix at all. If this is the only way to get an accurate recording, why even offer the intermittent gps recording? I know watches can deteriorate with time but it seems very sudden and I started with all these issues right after the new software push.

Has anyone found anything else to be helpful besides re-starting the watch, re-syncing, and recording gps every second? I also  It seems like there is still something going on, but I don't know what else to do. I'm ready to switch brands at this point. :/

In case it helps, my software version says 10.4 and my CPE is current.

Thanks in advance.

  • The GPS issue recently wasn't a Garmin software update issue as other brands had GPS problems at the same time

  • It was problem with a file that contained code (software), but yes, it was not an update that was delivered via the traditional software update channels. 

  • Per second GPS recording will not use much more battery life. It will merely save GPS points every second.

    Smart GPS recording is meant to save on storage, not battery life. It will only save points when it detects a change in direction. It will still need to track GPS per second to figure out the change in direction.

  • Thanks all. I was told my Garmin that it was associated with the software push and that second by second gps recording will decrease battery life. I need this watch to last for ultra trail runs, where I am frequently changing direction and elevation (I live in Colorado). 

    Regardless, thanks for you input but I am looking for advice on other options to help my gps accuracy, if anyone has them. I don't understand why it was accurate before the way I had the settings, and now all of the sudden it is unreliable without me changing a thing. 

  • Cool. You could manually load an older software version where GPS accuracy was not a problem for you?