I've note experienced these problems with my 510 and the new style sensors.
Check that your 810 firmware is up to date. Sometimes there are bugs that releases sort out.
As it's only 4 months old perhaps contact Garmin to see what they say before you have it out of warranty and of no use?
Check that your 810 firmware is up to date. Sometimes there are bugs that releases sort out.
As it's only 4 months old perhaps contact Garmin to see what they say before you have it out of warranty and of no use?
