diff --git a/readme.md b/readme.md
index b8b4b2c..6061b27 100644
--- a/readme.md
+++ b/readme.md
@@ -18,16 +18,18 @@ Pin it to the favorites in Explorer for easy access.
 2. Select the panel in the list on the left.
 3. Click `Instument+`in the Ribbon Menu.
 4. Find `GNS430 Hardware` and add it.
-5. Open the instrument list by click the triangle next to the panel in the list.
+5. Open the instrument list by click the triangle next to the panel in the panel list.
 6. Select `Generic - GNS430 Hardware`
 7. Scroll down to user properties and select the pins to which the cables were soldered.
 8. Have fun.
 
 # Hints
 ## Arduino Channels
-Arduinos have assigned channels. This channel is selected whe flashing the arduino (Flash Menu).
+Arduinos have assigned channels. This channel is selected when flashing the arduino (Flash Menu).
 In Step #3, Channel 0 Corresponds to Channel A, 1 to B, 2 to C, and so forth.
 
+**The Arduino must be flashed** and I suggest channel B.
+
 ## Available Pins
 Do not use Pins D0 and D1, as they are used for serial communication between airmanager and the arduino.
 You can use Pins D2 and upwards.