# Altitude data log in SkyDemon via safesky GDL90 error

**URL:** <https://forum.safesky.app/t/altitude-data-log-in-skydemon-via-safesky-gdl90-error/1988>\
**Category:** English\
**Created:** [April 12, 2025, 4:24am UTC](https://forum.safesky.app/t/altitude-data-log-in-skydemon-via-safesky-gdl90-error/1988 "2025-04-12T04:24:57Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![HSmith.Air](https://avatars.discourse-cdn.com/v4/letter/h/ecc23a/32.png) [@HSmith.Air](https://forum.safesky.app/u/HSmith.Air)\
**Post date:** [April 12, 2025, 4:24am UTC](https://forum.safesky.app/t/altitude-data-log-in-skydemon-via-safesky-gdl90-error/1988/1 "2025-04-12T04:24:57Z")

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Hi all,

When looking through the logs of my 2 flights yesterday, I noticed that the altitude was sporadic and indicating a rapid acsend and descend which is clearly a data problem.

Either that or I took my passenges for a hell of a ride!

See pic below.

The setup was:

SafeSky v.3.0.19 (387)

This was sharing data to SkyDemon

Skydemon connectivity settings has GDL90 Compatible device selected for GPS/Location data

Help please!?

 ![Screenshot_20250412_050700](https://europe1.discourse-cdn.com/flex017/uploads/safesky/original/1X/ca898e363d3d886f5580c77d3b8d4b4c6185dc94.jpeg)

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**Author:** ![tnowak](https://dub1.discourse-cdn.com/flex017/user_avatar/forum.safesky.app/tnowak/32/351_2.png) [@tnowak](https://forum.safesky.app/u/tnowak)\
**Post date:** [April 12, 2025, 7:55am UTC](https://forum.safesky.app/t/altitude-data-log-in-skydemon-via-safesky-gdl90-error/1988/2 "2025-04-12T07:55:26Z")

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Have you tried updating the Safesky app?  
I think SafeSky v.3.0.19 (387) has been superseded?

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<div class="post-metadata">

**Author:** ![HSmith.Air](https://avatars.discourse-cdn.com/v4/letter/h/ecc23a/32.png) [@HSmith.Air](https://forum.safesky.app/u/HSmith.Air)\
**Post date:** [April 12, 2025, 9:03am UTC](https://forum.safesky.app/t/altitude-data-log-in-skydemon-via-safesky-gdl90-error/1988/3 "2025-04-12T09:03:23Z")

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Thanks for quick response, im on a Samsung S24 Android and playstore says im all up to date. Unless I can force an upgrade somehow?

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<div class="post-metadata">

**Author:** ![tnowak](https://dub1.discourse-cdn.com/flex017/user_avatar/forum.safesky.app/tnowak/32/351_2.png) [@tnowak](https://forum.safesky.app/u/tnowak)\
**Post date:** [April 13, 2025, 6:58am UTC](https://forum.safesky.app/t/altitude-data-log-in-skydemon-via-safesky-gdl90-error/1988/4 "2025-04-13T06:58:55Z")

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I use a Samsung S22+ and have never seen that sort of issue, even when I had that version ( I am now beta testing newer SafeSky versions).  
Is this the same for all your flights when using SafeSky and SkyDemon?