Lately I noticed my cycling computer Garmin Edge 510 started to work slowly. I’ve been traveling through Google, but actually haven’t found any reasonable advice.
So, I tried my own solution to make Garmin work faster and that worked!
What I did was I simply connected my device via USB cable and deleted my old Activity files.
I really don’t need those files stored in device memory, since I already synced them to Garmin Connect .
That really improved Garmin’s performance (loading, starting, pausing etc).
I believe this works for other Garmin models, such as 500, 800, 810, 1000 etc.
quick cycling tips 