Hello, sorry that the extension board should be matched with control board, so the printer can't work if just change the extension board. If you need to level your printer, maybe a GLA10 is useful and here is the link:
https://www.geeetech.com/3d-printer-leveler-auxiliary-le-
veling-device-gla10-for-fdm-3d-printer-heat-bed-leveler-p-13-
67.html
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