Updates often reset your Bed Mesh and Z-Offset . You must re-calibrate everything immediately after.
A new firmware means new default values. You must: qidi xplus firmware install
An "Offline Update" or "Update" prompt should appear in the lower-left corner. Click it to begin. Updates often reset your Bed Mesh and Z-Offset
Here’s a step-by-step guide for installing firmware on a (assuming you meant X-Plus , as “X-Plus” is the correct model; “Xplus” is a common shorthand). as “X-Plus” is the correct model