This entry is a duplicate of what I posted at
http://yacf.co.uk/forum/index.php?topic=58702.msg1236152#msg1236152Thought it might also be appropriate to relist it here:
I've encountered the "Edge 800 crash after 400km" three times. After the first two times I returned the unit to Garmin and they replaced it.
The new unit had the same issue. After a bit a research I found that a number of other people had experienced the same issue.
There are a few entries on the Garmin forums eg:
https://forums.garmin.com/showthread.php?t=17002Until Garmin confirm a definite fix for the issue a way round this problem is to reset your activity at a "safe" distance of say 300km and then merge the multiple activities into one.
I tried a few different ways of doing this:
Garmin Basecamp - Can join activities, but only a basic track. You loose other info like heart rate and cadence.
TCX Converter - Can join two activities, but seems to consistently corrupt very long rides, placing random points several thousand km away. It also can't deal with activities spaning two or more days.
CombineActivities.jar - This works in so much that it successfully joins the two activities. The problem is that you need to copy and paste the result from the program into a text file. Most computer operating systems can't cope with this, due to the size. I found that Windows 7 and Mac OSX couldn't deal with 2x200km, Ubuntu Linux could. Even Linux couldn't cope with 2x300km
Ascent - I've successfully used the free trial version of this software to join two 300km .fit files. Unfortunately this software is only available for Max OSX.
Training Peaks - I read somewhere that you could do this on the desktop version of this product. They now seem to have a web based version. I've not tried it.
If anybody knows any other methods other than
Ascent please share.