kartminer7: clarify a button press, reenable wifi

_pages/en_US/installing-boot9strap-(kartminer7).txt

@@ -87,7 +87,7 @@ In this section, you will have the 3DS generate some data in Mario Kart 7 that w
 1. Tap the "Mario Kart Channel" button on the bottom
 1. Tap the "StreetPass List" button on the bottom of the screen, in the middle
 1. Press (A) over and over again
-    + The colours on the bottom screen should change from red, to blue, to white
+    + You should eventually see the "Start Race?" prompt, then the colours on the bottom screen should change from red, to blue, to white
     + If you see the red/blue/white screens but the 3DS crashes, just reboot and try again
     + If you don't see ANY colours, change your system language (if possible), then try the exploit again
 1. If the exploit was successful, the 3DS will have booted into the 3DS ROP xPloit Injector
@@ -112,6 +112,9 @@ In this section, you will use the Homebrew Launcher to remove menuhax67, which w
 1. Select REMOVE menuhax67
 1. When you see "done.", press (A), then press (A) on "EXIT to menu"
 
+At this point, you can re-enable wireless communications.
+{: .notice-info}
+
 ___
 
 Continue to [Finalizing Setup](finalizing-setup)