diff --git a/Marlin/src/inc/Warnings.cpp b/Marlin/src/inc/Warnings.cpp
index 2c2a82497839..40a4c9452d2e 100644
--- a/Marlin/src/inc/Warnings.cpp
+++ b/Marlin/src/inc/Warnings.cpp
@@ -694,6 +694,10 @@
   #error "Z_SAFE_HOMING is recommended when homing with a probe. Enable Z_SAFE_HOMING or comment out this line to continue."
 #endif
 
+#if ENABLED(BIQU_MICROPROBE_V2) && NONE(Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN, NO_MICROPROBE_WARNING)
+  #warning "BIQU MicroProbe V2 detect signal requires a strong pull-up. Some processors have weak internal pull-up capabilities, so we recommended connecting MicroProbe SIGNAL / GND to Z-MIN / Z-STOP instead of the dedicated PROBE port. (Define NO_MICROPROBE_WARNING to suppress this warning.)"
+#endif
+
 //
 // Warn users of potential endstop/DIAG pin conflicts to prevent homing issues when not using sensorless homing
 //