Is this normal behavior?

I cleaned with water the holes and let it dry for a day and always same results.

also when i do bike activity i have a lot more altitude then in should be.

normal is around 100m for me ride and never is this correct. i use everytime altitude correction on all activity's. just the 2 last activity's i didn't and this where the results

mtb ride 1 1857m and strava 124m

mtb ride 2 3317m and strava 106m

when i calibrate the altitude i do use gps mode and getting arround 1a4 m altitude and this happens,

0 #Matthias# over 2 years ago

Definitely not normal behavior. Do you have altitude auto calibration turned on?

0 Aäron over 2 years ago in reply to #Matthias#

Yes it set to on

0 #Matthias# over 2 years ago in reply to Aäron

Just to exclude auto calibration as the problem, I would turn it to 'nightly' and do another activity. If the numbers are still that far off, it is most probably a hardware problem.