# Unrecognized board signature error with JCZ LMCV4 when using LightBurn

**URL:** <https://forum.lightburnsoftware.com/t/unrecognized-board-signature-error-with-jcz-lmcv4-when-using-lightburn/179277>\
**Category:** Galvo\
**Tags:** bjjcz, windows10, jpt-source, windows\
**Created:** [September 4, 2025, 5:57pm UTC](https://forum.lightburnsoftware.com/t/unrecognized-board-signature-error-with-jcz-lmcv4-when-using-lightburn/179277 "2025-09-04T17:57:29Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![letien00](https://forum.lightburnsoftware.com/letter_avatar_proxy/v4/letter/l/58956e/32.png) [@letien00](https://forum.lightburnsoftware.com/u/letien00)\
**Post date:** [September 8, 2025, 3:10am UTC](https://forum.lightburnsoftware.com/t/unrecognized-board-signature-error-with-jcz-lmcv4-when-using-lightburn/179277/7 "2025-09-08T03:10:36Z")

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Hi Aaron, this is the config parameter of this machine. I think it is correct

 ![z6988422591909_6ebc799103cc1aa887c357223ab2763a](https://forum.lightburnsoftware.com/uploads/default/original/3X/e/0/e07e60860b67eba18f7307e3ed0d2e393ab21959.jpeg)  
 ![z6988422612088_cb446ec87b19273d27d18a429f6b1598](https://forum.lightburnsoftware.com/uploads/default/original/3X/3/e/3e719f0a12d357ec209a01dd11ebbfac2a333ed7.jpeg)  
 ![z6988422618538_5a1d14ec6b8c06bdc0f635d81f5d75a9](https://forum.lightburnsoftware.com/uploads/default/original/3X/3/4/347e9d4cbf81fe6b37a1c7d273d765ab5ec914d9.jpeg)

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