diff --git a/build/platform.device.n0110.mak b/build/platform.device.n0110.mak
index fd71ee975..256dd180d 100644
--- a/build/platform.device.n0110.mak
+++ b/build/platform.device.n0110.mak
@@ -1,3 +1,3 @@
 TOOLCHAIN ?= arm-gcc-m7f
 ION_KEYBOARD_LAYOUT = layout_B3
-PCB_LATEST = 343
+PCB_LATEST = 343 # PCB version 3.43
diff --git a/build/targets.device.n0110.mak b/build/targets.device.n0110.mak
index 59902232d..a6a1423ec 100644
--- a/build/targets.device.n0110.mak
+++ b/build/targets.device.n0110.mak
@@ -33,8 +33,10 @@ $(BUILD_DIR)/test.external_flash.write.$(EXE): $(BUILD_DIR)/quiz/src/test_ion_ex
 binpack:
 ifndef USE_IN_FACTORY
 	@echo "CAUTION: You are building a binpack."
-	@echo "You must specify where this binpack will be used"
-	@echo "Please set the USE_IN_FACTORY environment variable to either 0 or 1 to proceed."
+	@echo "You must specify where this binpack will be used."
+	@echo "Please set the USE_IN_FACTORY environment variable to either:"
+	@echo "  - 0 for use in diagnostic"
+	@echo "  - 1 for use in production"
 	@exit -1
 endif
 	rm -rf output/binpack