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Elevation chart and grade display completely wrong on 530 with v 3.50.0.0

My 530 was displaying grade during the ride accurately and had accurate elevation charts in Garmin connect after the ride. That all changed last week. The grade seems totally random. For example, today it indicated -7% during a steep climb.

In addition, the elevation chart displayed after a ride is completely wrong.

This is what it showed on my ride today before I applied elevation correction.

Here's the same ride after elevation correction was applied.

As you can see, they are completely different.

I don't know if this issue started when 3.50 was applied. Anyone else having this problem?

Top Replies

Garmin-Matthew over 5 years ago +2 verified

We have added elevation improvements to the new Public Beta 4.19 for the Edge 530 (found here). We would like some feedback from reporting users here to see they also see improvement in elevation readings…
Garmin-Matthew over 5 years ago in reply to PK +6

We are actively investigating this problem. I will provide an update when I have one available. I apologize for any inconvenience this may have caused.
Wolf2793 over 5 years ago +2

Same problem here, until few weeks ago grandient and elevation were pretty accurate, now during riding I’m experiencing no sense gradient (looks like a lag of few minutes) and inaccurate elevation and…
Wolf2793 over 5 years ago in reply to Wolf2793 +2

The problem apperead since I update the firmware to 3.5 version. Now, I’m running the 4.10 and the problem of inaccurate gradient, altitude and total ascent is still there. I tried also to reset the device…

All Replies

0 Radek over 5 years ago

Firstly, I think what you're seeing here is a HW problem. The elevation charts on my 530 are absolutely stellar and the fact the device calibrates automatically during a ride makes for very consistent measurements.

Secondly, you should NOT be applying elevation correction to rides recorded on devices with a barometer. While the device will use combination of barometric measurement to get the most accurate readings and DEM to account for changes in atmospheric pressure caused by anything other than elevation change, elevation correction uses DEM only, meaning it will be less accurate. Elevation correction is meant only for devices which do not have a barometric altimeter.

0 aweatherall over 5 years ago in reply to Radek

For those having issues have you put anything over the USB port cover? The location of the barometric port moved on the 530/830 and is now behind the USB port cover.

0 PiotrekJ over 5 years ago in reply to aweatherall

No cover, only bike computer on the handlebar ...

0 PiotrekJ over 5 years ago in reply to Radek

I do not applying elevation correction.

Sometimes my rides are perfect, another time like on screen. Ofcourse i talk about stability weather.

0 aweatherall over 5 years ago in reply to PiotrekJ

It does sound like there might be something wrong with these units. I would suggest contacting Garmin Support.

I've not since these issues on the unit I use.

0 manwels over 5 years ago in reply to aweatherall

Same here on my Edge 830, going back to v 3.20 is slightly better but not as good as it was when it came out of the box.

0 PK over 5 years ago in reply to aweatherall

The port was not blocked by anything.

The sensor is actually located upwards from the mount jig.

0 aweatherall over 5 years ago in reply to PK

Not on the 530/830, those 2 holes are for the speaker..

0 luis.obando over 5 years ago

I have the exact same problem, I know for a fact this was not after 3.50. Everything was working fine until I went out on very bad weather (rain), elevation graphs came back very wrong (it is expected) but after that day it has been bad even on good weather. Water on the sensor is my only guess. I just did 3.55 BETA to see if it will improve.

0 PK over 5 years ago in reply to luis.obando

Keep us posted!