# \#magicnumber

**URL:** https://forum.commonvisionblox.com/tag/magicnumber/97.md

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## [LightMeter Magic Number not Working!](https://forum.commonvisionblox.com/t/lightmeter-magic-number-not-working/500)

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**Author:** [@taserface](https://forum.commonvisionblox.com/u/taserface)\
**Replies:** 3\
**Last updated:** [July 30, 2018, 11:37am UTC](https://forum.commonvisionblox.com/t/lightmeter-magic-number-not-working/500 "2018-07-30T11:37:02Z")

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I recently received a CVB dongle (serial number 50018) with a LightMeter Magic Number that I added through the Management Console. But still, whenever I start a LightMeter tutorial I get a message box telling me that no …