Forums > Windsurfing   Gps and Speed talk

COROS firmware - May 2024

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Created by K888 5 months ago, 29 May 2024
K888
111 posts
29 May 2024 5:20AM
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Just a word of warning to anyone who hasn't yet installed the COROS firmware updates, released on May 10 (V 3.0408.0) and May 21 (V 3.0409.0).

My recommendation would be not to update your firmware until COROS fix an issue that was introduced in V 3.0408.0 and affects the the speeds recorded when in speedsurfing mode.

The issue mainly affects the max 2s and 10s results (reporting too low) but for anyone interested, full details are available on GitHub.

logiqx.github.io/gps-details/devices/coros/smoothing/

berowne
NSW, 1321 posts
29 May 2024 7:29AM
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Thanks for sharing. I noticed a 30.1 knot run on Mini Motion was recorded as 29.7 via Coros.

segler
WA, 1625 posts
30 May 2024 10:38PM
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Wow, nice work. It makes me really glad I invested in a 255 and set it up per other instructions on these fora (multifrequency, "other," all constellations).

To show just how far all of this has come for speedsurfing, etc., it is amazing that we now consider a 0.4 kt discrepancy at 30 kt to be significant.

Long live doppler!

K888
111 posts
31 May 2024 1:41AM
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Select to expand quote
segler said..
To show just how far all of this has come for speedsurfing, etc., it is amazing that we now consider a 0.4 kt discrepancy at 30 kt to be significant.


Since spotting this issue, I've been making a point of comparing speeds after every run.

A difference of over a knot is now quite common on my COROS, which I think is pretty poor when it used to be comparable to the FR 255.

Ironically, I spotted the COROS issue during my ongoing trial of the FR 255.

K888
111 posts
1 Jun 2024 1:26AM
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Update 31 May: The COROS product team are now aware of the issue. The timeline for resolution is not known, just yet.

DI7
10 posts
16 Jun 2024 9:35PM
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Any news on this issue?

K888
111 posts
17 Jun 2024 3:27PM
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COROS have acknowledged the issue but are yet to provide an eta for a fix.



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"COROS firmware - May 2024" started by K888