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eTrex 20/30 (Webupdater) software version 3.70

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Updates & Downloads


eTrex 20/30 (Webupdater) software version 3.70


as of March 25, 2014


Use Garmin Express to install this file.


(9.29 MB)


View system requirements


Change History


Changes made from version 3.60 to 3.70:


Improved total ascent and total descent calculations

Improved average ascent, average descent, and vertical speed data fields

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FW3.70 is great!

Now Trip computer=Track, IMO it slightly underestimates total ascent/total descent heights, but not that much.



If you erase Trip computer only, and save the track, it looses its elevation statistics.

So, it's better to erase both(trip computer and track) at once.

Edited by wmarek74
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The truth is that there is no 100% reliable eTrex 20/30 firmware yet.

Each released version has certain bugs (some minor, some huge).


We still have a hope for any better one firmware!


Current FW 3.70 has problems in response of Trip computer in low speeds (fields: speed, time of the movement).

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