diff --git a/PiSugar2-Pro.md b/PiSugar2-Pro.md
index 81bcb9c..6b41ed0 100644
--- a/PiSugar2-Pro.md
+++ b/PiSugar2-Pro.md
@@ -81,11 +81,12 @@ If you use schedule wake up function, please keep the power switch ON. The batte
 
 ## Activation
 
-Activation process is required by IP5312. once the battery level drop to very low or the battery is unplugged, you need to activate it in the next time when you plugin the battery or start charging. Click the circle button (near the tap button) to activate.
+Activation process is required by IP5312. once the battery level drop to very low or the battery is unplugged, you need to activate it in the next time when you plugin the battery or start charging. Plugin the USB Charging Port and click the circle button (near the tap button) to activate.
 
 ## 3D Printed Case
 
 Case for PiSugar2 pro is under developing.
+
 ## Documents
 
 Please refer to: https://github.com/PiSugar/pisugar-documents