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Help with corrupt fit file

Former Member
Former Member over 9 years ago
Might as well start a thread for this like they have over in the 500 forum.

I've only had my 520 for a week, and I really like it. The only issues I've had so far are that sometimes the bluetooth requires me to restart on the device to work properly, and then tonights FIT file is really corrupt so I can't load it over to strava.

The online FIT tool doesn't fix it, and then I opened it in golden cheetah. It seems the timestamps are all whacky, where it should be increasing every second, but it looks like the stamps are becoming integer overflows. The data is there, I just don't know of a way to edit all of the timestamps by just setting them as monotonically increasing seconds after they start getting corrupt in the file.

Any ideas?

  • 0 over 9 years ago
    can you take a look to see what is the problem with that file ( TSS - NP - IF out of space ) but in training peaks it is ok

    can you fix NP and TSS value ?
  • Former Member
    0 Former Member over 9 years ago
    Hi there

    Could anyone have a go at repairing this file please? It wasn't showing under Activities on my edge 500, so recovered it using recovery software.

    Tried running it through some repair tools but now saying the file is empty.

    Would like to get it back as its my only ride from holiday in Majorca! Not confident it is fixable though.

    Many thanks

    https://www.dropbox.com/s/ewxzrm26fb...48-43.fit?dl=0
  • Former Member
    0 Former Member over 9 years ago
    https://www.dropbox.com/s/ewxzrm26fb...48-43.fit?dl=0
    Sorry the Fit File Repair Tool couldn't recover any data. It seems to be a workout file and not an activity.
  • Former Member
    0 Former Member over 9 years ago
    Sorry the Fit File Repair Tool couldn't recover any data. It seems to be a workout file and not an activity.


    Ok - many thanks for trying.

    Thanks Grant
  • 0 over 9 years ago
    Hi everyone, i'm new to these forums, I had a forerunner 310xt for a few years that I used for running and cycling, but I do more cycling these days so I just bought an edge 520.... anyway, I used it to log a coast to coast ride this weekend, but I've found there is a 2 or 3 hour chunk of the 1st day (from about 2 hours to 5 hours, or from Ingleton to Hawes geographically) file with no data, which is frustrating because its the longest ride and the most climbing I've ever done!

    I don't know if anything can be done to fix this, but i'd be forever grateful if someone who knows more about these things than me could take a look and advise me what, if anything I can do?

    I've attached the fit file for this ride to my post, many thanks

  • Former Member
    0 Former Member over 9 years ago
    The 520 malfunctioned and didn't record any data for that chuck. That appears to be a bug in the Edge software that pops up from time to time.

    If you have a link to the plotted route I could patch in the missing portion.

    Edit: The 520 was working during that period so the total distance and elevation gain shown in Garmin Connect is correct. Other apps that compute those values from the data points rather than using the Edge totals will show less.
  • Former Member
    0 Former Member over 9 years ago
    Yet another corrupt file

    Hi All,

    I had a nice ride today and then my 520 decides it wants to do a software update at the 70km mark. I have managed to recover what I think is the correct file but I had to use some recovery software. So far I've been unable to fix it through any means. I converted it to CSV and had a look but it didn't look good. Anybody fancy having a go?
  • Former Member
    0 Former Member over 9 years ago
    Sorry the Fit File Repair Tool couldn't recover the data. One of the items in this update was to fix the problem of the 520 updating in the middle of a ride.
  • Former Member
    0 Former Member over 9 years ago
    Thanks for trying

    Sorry the Fit File Repair Tool couldn't recover the data. One of the items in this update was to fix the problem of the 520 updating in the middle of a ride.


    Thanks for giving it a go. At least I know it won't happen again ;)
  • 0 over 9 years ago
    fit file problem..

    Not my first erroneous fit file but first one I wish to recover.

    Have tried a few auto fix tools no luck.. the activity where "successfully" imported to garmin (via phone on activity save), In my connect app on my android device the activity looks fine (hr, speed, cadence etc..) on connect.garmin.com the activity have mostly aggregated values, the track seems fine.
    The activiy is not automatically syncronized to strava, and i'n not able to manually upload the file.. (after trying to fix the file using the strava suggested fix tool,, the activity becomes cropped.. and is cut of..

    (the file is retrieved from the 520 using file explorer.)

    What to do?