diff --git a/app.ts b/app.ts
index c164440..d00b0d5 100644
--- a/app.ts
+++ b/app.ts
@@ -24,7 +24,7 @@ namespace microcode {
 
             datalogger.includeTimestamp(FlashLogTimeStampFormat.None)
             
-            const arcadeShieldConnected = screenhelpers.displayPresent();
+            const arcadeShieldConnected = shieldhelpers.shieldPresent();
             if (arcadeShieldConnected)
                 this.pushScene(new Home(this))
             else
diff --git a/main.ts b/main.ts
index 291ded0..27ee3e3 100644
--- a/main.ts
+++ b/main.ts
@@ -1 +1,2 @@
-new microcode.App();
\ No newline at end of file
+new microcode.App()
+
diff --git a/pxt.json b/pxt.json
index 65a2252..36bbd4d 100644
--- a/pxt.json
+++ b/pxt.json
@@ -7,7 +7,7 @@
         "radio": "*",
         "microphone": "*",
         "datalogger": "*",
-        "pxt-arcadeshield": "github:microsoft/pxt-arcadeshield#v0.1.4",
+        "pxt-arcadeshield": "github:microsoft/pxt-arcadeshield#v0.1.7",
         "jacdac": "github:microsoft/pxt-jacdac#v1.9.28",
         "jacdac-light-level": "github:microsoft/pxt-jacdac/light-level#v1.9.28",
         "jacdac-soil-moisture": "github:microsoft/pxt-jacdac/soil-moisture#v1.9.28",
@@ -54,10 +54,11 @@
     ],
     "testFiles": [],
     "targetVersions": {
-        "target": "7.1.2",
+        "target": "7.1.13",
         "targetId": "microbit"
     },
     "supportedTargets": [
         "microbit"
-    ]
+    ],
+    "preferredEditor": "tsprj"
 }