# Newbie with used A250 - Can’t Calibrate

**URL:** <https://forum.snapmaker.com/t/newbie-with-used-a250-can-t-calibrate/33551>\
**Category:** Snapmaker2.0 Troubleshooting guides\
**Created:** [November 10, 2023, 2:18am UTC](https://forum.snapmaker.com/t/newbie-with-used-a250-can-t-calibrate/33551 "2023-11-10T02:18:21Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![xchrisd](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/xchrisd/32/1503_2.png) [@xchrisd](https://forum.snapmaker.com/u/xchrisd)\
**Post date:** [November 10, 2023, 7:49pm UTC](https://forum.snapmaker.com/t/newbie-with-used-a250-can-t-calibrate/33551/4 "2023-11-10T19:49:05Z")

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Does your proximity sensor light up when triggered?

> [@A350 Proximity sensor not working?](https://forum.snapmaker.com/t/a350-proximity-sensor-not-working/7803/10):
>
> Here is it.

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