# Step by step instruction for Ground control update

**URL:** <https://forums.maslowcnc.com/t/step-by-step-instruction-for-ground-control-update/5331>\
**Category:** Ground Control\
**Created:** [July 31, 2018, 4:40pm UTC](https://forums.maslowcnc.com/t/step-by-step-instruction-for-ground-control-update/5331 "2018-07-31T16:40:36Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![rubiks](https://avatars.discourse-cdn.com/v4/letter/r/ecc23a/32.png) [@rubiks](https://forums.maslowcnc.com/u/rubiks)\
**Post date:** [July 31, 2018, 4:40pm UTC](https://forums.maslowcnc.com/t/step-by-step-instruction-for-ground-control-update/5331/1 "2018-07-31T16:40:36Z")

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I recently finished setting up and calibrating my Maslow. I updated my Firmware but then received the message below stating I had to update Ground Control.

What are the steps needed to update ground control? I couldnt find easy to follow steps in the forum and I dont want to download a new version if I have to re-calibrate my machine again.

Im running on Windows

![image](https://canada1.discourse-cdn.com/flex031/uploads/maslowcnc/original/2X/7/71e47c5056bca221b2e270f3d13d477c82cffeac.png)

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**Author:** ![madgrizzle](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/madgrizzle/32/1372_2.png) [@madgrizzle](https://forums.maslowcnc.com/u/madgrizzle)\
**Post date:** [July 31, 2018, 4:42pm UTC](https://forums.maslowcnc.com/t/step-by-step-instruction-for-ground-control-update/5331/2 "2018-07-31T16:42:52Z")

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just download the lastest release from github, extract it, and run it like version 1.17. The calibration file, groundcontrol.ini, is stored in C:/users/username folder (assuming your PC has a standard windows install) and won’t be overwritten. If you are happy with the calibration, I recommend making a backup copy of the groundcontrol.ini file (not because upgrading, but just if something happens to your PC)

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<div class="post-metadata">

**Author:** ![rubiks](https://avatars.discourse-cdn.com/v4/letter/r/ecc23a/32.png) [@rubiks](https://forums.maslowcnc.com/u/rubiks)\
**Post date:** [July 31, 2018, 4:46pm UTC](https://forums.maslowcnc.com/t/step-by-step-instruction-for-ground-control-update/5331/3 "2018-07-31T16:46:37Z")

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ok. simple enough.

Thanks

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**Author:** ![Bee](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/bee/32/2160_2.png) [@Bee](https://forums.maslowcnc.com/u/Bee)\
**Post date:** [July 31, 2018, 10:16pm UTC](https://forums.maslowcnc.com/t/step-by-step-instruction-for-ground-control-update/5331/4 "2018-07-31T22:16:56Z")

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As FYI - you can run this way & I have. It’s a warning message, you can continue past it.

Thank you